Webster's Unabridged Dictionary - Letter D - Page 103
Drysaltery (n.) The articles kept by a drysalter; also, the business of a drysalter.
Dry-shod (a.) Without wetting the feet ; having or keeping the feet or shoes dry; as, a land bridge over which man and beasts could have crossed dry-shod.
Dry-shod (a.) Having or keeping the feet or shoes dry; "a land bridge over which man and beasts could have crossed dry-shod."
Dry-stone (a.) Constructed of uncemented stone. "Dry-stone walls." -- Sir W. Scott. Dryth
Dryth (n.) Alt. of Drith.
Drith (n.) Drought. [Obs.] -- Tyndale.
Duad (n.) A union of two; duality. [R.] -- Harris.
Duad (n.) Two items of the same kind [syn: couple, pair, twosome, twain, brace, span, yoke, couplet, distich, duo, duet, dyad, duad].
Dual (a.) Expressing, or consisting of, the number two; belonging to two; as, the dual number of nouns, etc. , in Greek.
Here you have one half of our dual truth. -- Tyndall.
Dual (a.) Consisting of or involving two parts or components usually in pairs; "an egg with a double yolk"; "a double (binary) star"; "double doors"; "dual controls for pilot and copilot"; "duple (or double) time consists of two (or a multiple of two) beats to a measure" [syn: double, dual, duple].
Dual (a.) Having more than one decidedly dissimilar aspects or qualities; "a double (or dual) role for an actor"; "the office of a clergyman is twofold; public preaching and private influence" -- R.W.Emerson; "every episode has its double and treble meaning"-Frederick Harrison [syn: double, dual, twofold, two-fold, treble, threefold, three- fold].
Dual (a.) A grammatical number category referring to two items or units as opposed to one item (singular) or more than two items (plural); "ancient Greek had the dual form but it has merged with the plural form in modern Greek."
Dual, () Every field of mathematics has a different meaning of dual. Loosely, where there is some binary symmetry of a theory, the image of what you look at normally under this symmetry is referred to as the dual of your normal things.
In linear algebra for example, for any vector space V, over a field, F, the vector space of linear maps from V to F is known as the dual of V. It can be shown that if V is finite-dimensional, V and its dual are isomorphic (though no isomorphism between them is any more natural than any other).
There is a natural embedding of any vector space in the dual of its dual:
V -> V'': v -> (V': w -> wv : F)
(x' is normally written as x with a horizontal bar above it).
I.e. v'' is the linear map, from V' to F, which maps any w to the scalar obtained by applying w to v. In short, this double-dual mapping simply exchanges the roles of function and argument.
It is conventional, when talking about vectors in V, to refer to the members of V' as covectors. (1997-03-16)
Dualin (n.) (Chem.) An explosive substance consisting essentially of sawdust or wood pulp, saturated with nitroglycerin and other similar nitro compounds. It is inferior to dynamite, and is more liable to explosion.
Dualism (n.) State of being dual or twofold; a twofold division; any system which is founded on a double principle, or a twofold distinction; as:
Dualism (n.) (Philos.) A view of man as constituted of two original and independent elements, as matter and spirit. (Theol.)
Dualism (n.) A system which accepts two gods, or two original principles, one good and the other evil.
Dualism (n.) The doctrine that all mankind are divided by the arbitrary decree of God, and in his eternal foreknowledge, into two classes, the elect and the reprobate.
Dualism (n.) (Physiol.) The theory that each cerebral hemisphere acts independently of the other.
An inevitable dualism bisects nature, so that each thing is a half, and suggests another thing to make it whole. -- Emerson.
Dualism (n.) The doctrine that reality consists of two basic opposing elements, often taken to be mind and matter (or mind and body), or good and evil.
Dualist (n.) One who believes in dualism; a ditheist.
Dualist (n.) One who administers two offices. -- Fuller.
Dualist (n.) An adherent of dualism.
Dualistic (a.) Consisting of two; pertaining to dualism or duality.
Dualistic system or Dualistic theory (Chem.), An old theory, originated by Lavoisier and developed by Berzelius, that all definite compounds are binary in their nature, and consist of two distinct constituents, themselves simple or complex, and possessed of opposite chemical or electrical affinities; -- superseded by later developments in chemical bonding theory, especially quantum mechanics.
Dualistic (a.) Of or relating to the philosophical doctrine of dualism; "a Manichaean conflict between good and evil" [syn: dualistic, Manichaean].
Duality (n.) The quality or condition of being two or twofold; dual character or usage.
Duality (n.) Being twofold; a classification into two opposed parts or subclasses; "the dichotomy between eastern and western culture" [syn: dichotomy, duality].
Duality (n.) (Physics) The property of matter and electromagnetic radiation that is characterized by the fact that some properties can be explained best by wave theory and others by particle theory [syn: duality, wave-particle duality].
Duality (n.) (Geometry) The interchangeability of the roles of points and planes in the theorems of projective geometry.
Duan (n.) [Gael. & Ir.] A division of a poem corresponding to a canto; a poem or song. [R.]
Duarchy (n.) Government by two persons.
Dubbed (imp. & p. p.) of Dub.
Dubbing (p. pr. & vb. n.) of Dub.
Dub (v. t.) To confer knighthood upon; as, the king dubbed his son Henry a knight.
Note: The conclusion of the ceremony was marked by a tap on the shoulder with the sword.
Dub (v. t.) To invest with any dignity or new character; to entitle; to call.
A man of wealth is dubbed a man of worth. -- Pope.
Dub (v. t.) To clothe or invest; to ornament; to adorn. [Obs.]
His diadem was dropped down Dubbed with stones. -- Morte d'Arthure.
Dub (v. t.) To strike, rub, or dress smooth; to dab; as:
Dub (v. t.) To dress with an adz; as, to dub a stick of timber smooth.
Dub (v. t.) To strike cloth with teasels to raise a nap. -- Halliwell.
Dub (v. t.) To rub or dress with grease, as leather in the process of cyrrying it. -- Tomlinson.
Dub (v. t.) To prepare for fighting, as a gamecock, by trimming the hackles and cutting off the comb and wattles.
To dub a fly, To dress a fishing fly. [Prov. Eng.] -- Halliwell.
To dub out (Plastering), To fill out, as an uneven surface, to a plane, or to carry out a series of small projections.
Dub (v. i.) To make a noise by brisk drumbeats. "Now the drum dubs." -- Beau. & Fl.
Dub (v. t.) To add sound to an existing recording, audio or video; -- often used with in. The sound may be of any type or of any duration.
Dub (v. t.) To mix together two or more sound or video recordings to produce a composite recording.
Dub (n.) A blow. [R.] -- Hudibras.
Dub (n.) A pool or puddle. [Prov. Eng.] -- Halliwell.
Dubb (n.) [Ar.] (Zool.) The Syrian bear. See under Bear. [Written also dhubb, and dub.]
Dub (n.) The new sounds added by dubbing.
Dub (v.) Give a nickname to [syn: dub, nickname].
Dub (v.) Provide (movies) with a soundtrack of a foreign language.
Dub (v.) Raise (someone) to knighthood; "The Beatles were knighted" [syn: knight, dub].
Dubber (n.) One who, or that which, dubs.
Dubber (n.) A globular vessel or bottle of leather, used in India to hold ghee, oil, etc. [Also written dupper.] -- M'Culloch.
Dubbing (n.) The act of dubbing, as a knight, etc.
Dubbing (n.) The act of rubbing, smoothing, or dressing; a dressing off smooth with an adz.
Dubbing (n.) A dressing of flour and water used by weavers; a mixture of oil and tallow for dressing leather; daubing.
Dubbing (n.) The body substance of an angler's fly. -- Davy.
Dubbing (n.) A new soundtrack that is added to a film.
Dubieties (n. pl. ) of Dubiety.
Dubiety (n.) Doubtfulness; uncertainty; doubt. [R.] -- Lamb. "The dubiety of his fate." -- Sir W. Scott.
Dubiety (n.) The state of being unsure of something [syn: doubt, uncertainty, incertitude, dubiety, doubtfulness, dubiousness] [ant: certainty].
Dubiosities (n. pl. ) of Dubiosity.
Dubiosity (n.) The state of being doubtful; a doubtful statement or thing. [R.]
Men often swallow falsities for truths, dubiosities for certainties, possibilities for feasibilities. -- Sir T. Browne.
Dubious (a.) Doubtful or not settled in opinion; being in doubt; wavering or fluctuating; undetermined. "Dubious policy." -- Sir T. Scott.
A dubious, agitated state of mind. -- Thackeray.
Dubious (a.) Occasioning doubt; not clear, or obvious; equivocal; questionable; doubtful; as, a dubious answer.
Wiping the dingy shirt with a still more dubious pocket handkerchief. -- Thackeray.
Dubious (a.) Of uncertain event or issue; as, in dubious battle.
Syn: Doubtful; doubting; unsettled; undetermined; equivocal; uncertain. Cf. Doubtful.
Dubious (a.) Fraught with uncertainty or doubt; "they were doubtful that the cord would hold"; "it was doubtful whether she would be admitted"; "dubious about agreeing to go" [syn: doubtful, dubious].
Dubious (a.) Open to doubt or suspicion; "the candidate's doubtful past"; "he has a dubious record indeed"; "what one found uncertain the other found dubious or downright false"; "it was more than dubitable whether the friend was as influential as she thought"- Karen Horney [syn: doubtful, dubious, dubitable, in question(p)].
Dubious (a.) Not convinced; "they admitted the force of my argument but remained dubious."
Dubiously (adv.) In a dubious manner.
Dubiously (adv.) In a questionable and dubious manner; "these were estates his father questionably acquired" [syn: questionably, dubiously].
Dubiously (adv.) In a doubtful manner; "Gerald shook his head doubtfully" [syn: doubtfully, dubiously].
Dubiousness (n.) State of being dubious.
Dubiousness (n.) The state of being unsure of something [syn: doubt, uncertainty, incertitude, dubiety, doubtfulness, dubiousness] [ant: certainty].
Dubiousness (n.) Uncertainty about the truth or factuality or existence of something; "the dubiousness of his claim"; "there is no question about the validity of the enterprise" [syn: doubt, dubiousness, doubtfulness, question].
Dubitable (a.) Liable to be doubted; uncertain. [R.] -- Dr. H. More. -- Du"bi*ta*bly, adv. [R.]
Dubitable (a.) Open to doubt or suspicion; "the candidate's doubtful past"; "he has a dubious record indeed"; "what one found uncertain the other found dubious or downright false"; "it was more than dubitable whether the friend was as influential as she thought"- Karen Horney [syn: doubtful, dubious, dubitable, in question(p)].
Dubitancy (n.) Doubt; uncertainty. [R.] -- Hammond.
Dubitate (v. i.) To doubt. [R.]
If he . . . were to loiter dubitating, and not come. -- Carlyle.
Dubitation (n.) Act of doubting; doubt. [R.] -- Sir T. Scott.
Dubitative (a.) Tending to doubt; doubtful. [R.] -- Du"bi*ta*tive*ly, adv. [R.] -- Eliot.
Duboisia (n.) [NL.] (Med.) Same as Duboisine.
Compare: Hyoscyamine
Hyoscyamine (n.) [See Hyoscyamus.] (Chem.) An alkaloid found in henbane ({Hyoscyamus niger), and regarded as its active principle. It is also found with other alkaloids in the thorn apple and deadly nightshade. It is extracted as a white crystalline substance, with a sharp, offensive taste. Hyoscyamine is isomeric with atropine, is very poisonous, and is used as a medicine for neuralgia, like belladonna. Called also hyoscyamia, duboisine, etc.
Duboisine (n.) (Med.) An alkaloid obtained from the leaves of an Australian tree ({Duboisia myoporoides), and regarded as identical with hyoscyamine. It produces dilation of the pupil of the eye.
Ducal (a.) Of or pertaining to a duke.
His ducal cap was to be exchanged for a kingly crown. -- Motley.
Ducal (a.) Of or belonging to or suitable for a duke; "ducal palace."
Ducally (adv.) In the manner of a duke, or in a manner becoming the rank of a duke.
Ducat (n.) A coin, either of gold or silver, of several countries in Europe; originally, one struck in the dominions of a duke.
Note: The gold ducat is generally of the value of nine shillings and four pence sterling, or somewhat more that two dollars. The silver ducat is of about half this value.
Ducat (n.) Formerly a gold coin of various European countries.
Ducat. () The name of a foreign coin. The ducat of Naples shall be estimated in the computations of customs, at eighteen cents. Act of May 22, 1846.
Ducatoon (n.) A silver coin of several countries of Europe, and of different values.
Duces tecum () A judicial process commanding a person to appear in court and bring with him some piece of evidence or other thing to be produced to the court.
Duces tecum, () practice, evidence. Bring with thee. A writ commonly called a subpoena duces tecum, commanding the person to whom it is directed to bring with him some writings, papers, or other things therein specified and described, before the court. 1 Phil. Ev. 886.
Duces tecum, () In general all papers in the possession of the witness must be produced; but to this general rule there are exceptions, among which are the following: 1. That a party is not bound to exhibit his own title deeds. 1 Stark. Ev. 87; 8 C. & P. 591; 2 Stark. R. 203; 9 B. & Cr. 288. 2. One who has advanced money on a lease, and holds it as his security, is not bound to produce it. 6 C. & P. 728. 3. Attorneys and solicitors who hold the papers of their clients cannot be compelled to produce them, unless the client could have been so compelled. 6 Carr. & P. 728. See 5 Cowen, R. 153, 419; Esp. R. 405; 11 Price, R. 455; 1 Adol. & Ell. 31; 1 C. M. & R. 38 1 Hud. & Brooke, 749. On the question how far this clause is obligatory on a witness, see 1 Dixon on Tit. Deeds, 98, 99, 102; 1 Esp. N. P. Cas. 405; 4 Esp. N. P. C. 43; 9 East, Rep. 473.
Duchess (n.) The wife or widow of a duke; also, a lady who has the sovereignty of a duchy in her own right.
Duchess (n.) The wife of a duke or a woman holding ducal title in her own right.
Duchesse d'Angouleme () (Bot.) A variety of pear of large size and excellent flavor.
Duchies (n. pl. ) of Duchy.
Duchy (n.) The territory or dominions of a duke; a dukedom.
Duchy (n.) The domain controlled by a duke or duchess [syn: duchy, dukedom].
Duck (n.) A pet; a darling. -- Shak.
Duck (n.) 帆布；粗布 [U] A linen (or sometimes cotton) fabric, finer and lighter than canvas, -- used for the lighter sails of vessels, the sacking of beds, and sometimes for men's clothing.
Duck (n.) (Naut.) pl. The light clothes worn by sailors in hot climates. [Colloq.]
Ducked (imp. & p. p.) of Duck.
Ducking (p. pr. & vb. n.) of Duck.
Duck (v. t.) To thrust or plunge under water or other liquid and suddenly withdraw.
Adams, after ducking the squire twice or thrice, leaped out of the tub. -- Fielding.
Duck (v. t.) To plunge the head of under water, immediately withdrawing it; as, duck the boy.
Duck (v. t.) To bow; to bob down; to move quickly with a downward motion. " Will duck his head aside." -- Swift.
Duck (v. i.) To go under the surface of water and immediately reappear; to dive; to plunge the head in water or other liquid; to dip.
In Tiber ducking thrice by break of day. -- Dryden.
Duck (v. i.) To drop the head or person suddenly; to bow.
The learned pate Ducks to the golden fool. -- Shak.
Duck (n.) (Zool.) Any bird of the subfamily Anatinae, family Anatidae.
Note: The genera and species are numerous. They are divided into river ducks and sea ducks. Among the former are the common domestic duck ({Anas boschas); the wood duck ({Aix sponsa); the beautiful mandarin duck of China ({Dendronessa galeriliculata); the Muscovy duck, originally of South America ({Cairina moschata). Among the sea ducks are the eider, canvasback, scoter, etc.
Duck (n.) A sudden inclination of the bead or dropping of the person, resembling the motion of a duck in water.
Here be, without duck or nod, Other trippings to be trod. -- Milton.
Bombay duck (Zool.), A fish. See Bummalo.
Buffel duck, Spirit duck. See Buffel duck.
Duck ant (Zool.), A species of white ant in Jamaica which builds large nests in trees.
Duck barnacle. (Zool.) See Goose barnacle.
Duck hawk. (Zool.) (a) In the United States: The peregrine falcon.
Duck hawk. (Zool.) (b) In England: The marsh harrier or moor buzzard.
Duck mole (Zool.), A small aquatic mammal of Australia, having webbed feet and a bill resembling that of a duck ({Ornithorhynchus anatinus). It belongs the subclass Monotremata and is remarkable for laying eggs like a bird or reptile; -- called also duckbill, platypus, mallangong, mullingong, tambreet, and water mole.
To make ducks and drakes, To throw a flat stone obliquely, so as to make it rebound repeatedly from the surface of the water, raising a succession of jets; hence:
To play at ducks and drakes, With property, to throw it away heedlessly or squander it foolishly and unprofitably.
Lame duck. See under Lame.
Duck (n.) Small wild or domesticated web-footed broad-billed swimming bird usually having a depressed body and short legs.
Duck (n.) (Cricket) A score of nothing by a batsman [syn: duck, duck's egg].
Duck (n.) 鴨肉 Flesh of a duck (domestic or wild).
Duck (n.) A heavy cotton fabric of plain weave; used for clothing and Tents.
Duck (v.) To move (the head or body) quickly downwards or away; "Before he could duck, another stone struck him."
Duck (v.) Submerge or plunge suddenly.
Duck (v.) Dip into a liquid; "He dipped into the pool" [syn: dip, douse, duck].
Duck (v.) Avoid or try to avoid fulfilling, answering, or performing (duties, questions, or issues); "He dodged the issue"; "she skirted the problem"; "They tend to evade their responsibilities"; "he evaded the questions skillfully" [syn: hedge, fudge, evade, put off, circumvent, parry, elude, skirt, dodge, duck, sidestep].
Duckbill (n.) (Zool.) See Duck mole, under Duck, n.
Compare: Duck mole
Duck mole (n.) (pl. Duck moles) (Obs.) The platypus.
Compare: Platypus
Platypus (n.) 【動】鴨嘴獸 (Zool.) The duck mole. See under Duck.
Syn: Duck Mole, duckbill, duck-bill platypus, duck-billed platypus.
Platypus (n.) Small densely furred
aquatic monotreme of Australia and Tasmania having a broad bill and tail and
webbed feet; only species in the family Ornithorhynchidae [syn: platypus,
duckbill, duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus].
Duckbill (a.) Having a beak resembling that of
a duck; "a duck-billed dinosaur" [syn: duckbill,
duck-billed].
Duckbill (n.) Primitive fish of the Mississippi valley having a long paddle-shaped snout [syn: paddlefish, duckbill, Polyodon spathula].
Duckbill (n.) Small densely furred aquatic monotreme of Australia and Tasmania having a broad bill and tail and webbed feet; only species in the family Ornithorhynchidae [syn: platypus, duckbill, duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus].
Duck-bill, (n.) Your account at your restaurant during the canvas-back season.
Duck-billed (a.) Having a bill like that of a duck.
Syn: duckbill, duckbilled.
Duck-billed (a.) Having a bill like that of a duck; as, a duck-billed dinosaur.
Duck-billed (a.) Having a beak resembling that of a duck; "a duck-billed dinosaur" [syn: duckbill, duck-billed].
Doucker (n.) (Zool.) A grebe or diver; -- applied also to the golden-eye, pochard, scoter, and other ducks. [Written also ducker.] [Prov. Eng.]
Ducker (n.) One who, or that which, ducks; a plunger; a diver.
Ducker (n.) A cringing, servile person; a fawner.
Ducking () n. & a., from Duck, v. t. & i.
Duck-legged (a.) Having short legs, like a waddling duck; short-legged. -- Dryden.
Duckling (n.) A young or little duck. -- Gay. Duckmeat
Duckling (n.) Flesh of a young domestic duck.
Duckling (n.) Young duck.
Duckmeat (n.) Alt. of Duck's-meat.
Duck's-meat (n.) (Bot.) Duckweed.
Compare: Duckweed
Duckweed (n.) (Bot.) A genus ({Lemna) of small plants, seen floating in great quantity on the surface of stagnant pools fresh water, and supposed to furnish food for ducks; -- called also duckmeat.
Duck's-bill (a.) Having the form of a duck's bill.
Duck's-bill limpet (Zool.), A limpet of the genus Parmaphorus; -- so named from its shape.
Duck's-foot (n.) (Bot.) The May apple ({Podophyllum peltatum).
Duckweed (n.) (Bot.) A genus ({Lemna) of small plants, seen floating in great quantity on the surface of stagnant pools fresh water, and supposed to furnish food for ducks; -- called also duckmeat.
Duckweed (n.) Any small or minute aquatic plant of the family Lemnaceae that float on or near the surface of shallow ponds.
Duct (n.) Any tube or canal by which a fluid or other substance is conducted or conveyed.
Duct (n.) (Anat.) One of the vessels of an animal body by which the products of glandular secretion are conveyed to their destination.
Duct (n.) (Bot.) A large, elongated cell, either round or prismatic, usually found associated with woody fiber.
Note: Ducts are classified, according to the character of the surface of their walls, or their structure, as annular, spiral, scalariform, etc.
Duct (n.) Guidance; direction. [Obs.] -- Hammond.
Duct (n.) A bodily passage or tube lined with epithelial cells and conveying a secretion or other substance; "the tear duct was obstructed"; "the alimentary canal"; "poison is released through a channel in the snake's fangs" [syn: duct, epithelial duct, canal, channel].
Duct (n.) A continuous tube formed by a row of elongated cells lacking intervening end walls.
Duct (n.) An enclosed conduit for a fluid.
Ductible (a.) Capable of being drawn out. [R.] -- Feltham.
Ductile (a.) 易延展的；柔軟的；易教導的 Easily led; tractable; complying; yielding to motives, persuasion, or instruction; as, a ductile people. -- Addison.
Forms their ductile minds To human virtues. -- Philips.
Ductile (a.) Capable of being elongated or drawn out, as into wire or threads.
Gold . . . is the softest and most ductile of all metals. -- Dryden. -- Duc"tile*ly, adv. -- Duc"tile*ness, n.
Ductile (a.) Easily influenced [syn: {ductile}, {malleable}].
Ductile (a.) Capable of being shaped or bent or drawn out; "ductile copper"; "malleable metals such as gold"; "they soaked the leather to made it pliable"; "pliant molten glass"; "made of highly tensile steel alloy" [syn: {ductile}, {malleable}, {pliable}, {pliant}, {tensile}, {tractile}].
Ductilimeter (n.) An instrument for accurately determining the ductility of metals.
Ductility (n.) The property of a metal which allows it to be drawn into wires or filaments.
Ductility (n.) Tractableness; pliableness. -- South.
Duction (n.) Guidance. [Obs.] -- Feltham.
Ductless (a.) Having to duct or outlet; as, a ductless gland.
Ductless (a.) Not having a duct; "ductless glands."
Ductless gland (n.) Any of the glands of the endocrine system that secrete hormones directly into the bloodstream. Also called Endocrine gland.