Webster's Unabridged Dictionary - Letter O - Page 26
Orthoclase (n.) (Min.) Common or potash feldspar crystallizing in the monoclinic system and having two cleavages at right angles to each other. See Feldspar.
Orthoclase (n.) A white or colored monoclinic feldspar.
Orthoclastic (a.) (Crystallog.) Breaking in directions at right angles to each other; -- said of the monoclinic feldspars.
Orthodiagonal (n.) (Crystallog.) The diagonal or lateral axis in a monoclinic crystal which is at right angles with the vertical axis.
Orthodome (n.) (Crystallog.) See the Note under Dome, 4.
Orthodox (a.) Sound in opinion or doctrine, especially in religious doctrine; hence, holding the Christian faith; believing the doctrines taught in the Scriptures; -- opposed to heretical and heterodox; as, an orthodox Christian.
Orthodox (a.) According or congruous with the doctrines of Scripture, the creed of a church, the decree of a council, or the like; as, an orthodox opinion, book, etc.
Orthodox (a.) Adhering to generally approved doctrine or practices; conventional. Opposed to unorthodox.
He saluted me on both cheeks in the orthodox manner. -- H. R. Haweis.
Orthodox (a.) Of or pertaining to the churches of the Eastern Christian rite, especially the Greek Orthodox or Russian Orthodox churches, which do not recognize the supremacy of the Pope of Rome in matters of faith.
Note: The term orthodox differs in its use among the various Christian communions. The Greek Church styles itself the "Holy Orthodox Apostolic Church," regarding all other bodies of Christians as more or less heterodox. The Roman Catholic Church regards the Protestant churches as heterodox in many points. In the United States the term orthodox is frequently used with reference to divergent views on the doctrine of the Trinity. Thus it has been common to speak of the Trinitarian Congregational churches in distinction from the Unitarian, as Orthodox.` The name is also applied to the conservative, in distinction from the "liberal", or Hicksite, body in the Society of Friends. -- Schaff-Herzog Encyc.
Orthodox (a.) Of or pertaining to or characteristic of Judaism; "Orthodox Judaism" [syn: Orthodox, Jewish-Orthodox].
Orthodox (a.) Adhering to what is commonly accepted; "an orthodox view of the world" [ant: unorthodox].
Orthodox (a.) Of or relating to or characteristic of the Eastern Orthodox Church [syn: Orthodox, Eastern Orthodox, Russian Orthodox, Greek Orthodox].
Orthodox (n.) An ox wearing the popular religious joke.
Orthodoxal (a.) Pertaining to, or evincing, orthodoxy; orthodox. [R.] -- Milton.
Orthodoxality (n.) Orthodoxness. [R.]
Orthodoxally (adv.) Orthodoxly. [R.] -- Milton.
Orthodoxastical (a.) Orthodox. [Obs.]
Orthodoxical (a.) Pertaining to, or evincing, orthodoxy; orthodox.
Orthodoxly (adv.) In an orthodox manner; with soundness of faith. -- Sir W. Hamilton.
Orthodoxness (n.) The quality or state of being orthodox; orthodoxy. -- Waterland.
Orthodoxy (n.) Soundness of faith; a belief in the doctrines taught in the Scriptures, or in some established standard of faith; -- opposed to heterodoxy or to heresy.
Basil himself bears full and clear testimony to Gregory's orthodoxy. -- Waterland.
Orthodoxy (n.) Consonance to genuine Scriptural doctrines; -- said of moral doctrines and beliefs; as, the orthodoxy of a creed.
Orthodoxy (n.) By extension, said of any generally accepted doctrine or belief; the orthodox practice or belief.
Orthodoxy (n.) The quality of being orthodox (especially in religion) [ant: heterodoxy, unorthodoxy].
Orthodoxy (n.) A belief or orientation agreeing with conventional standards [ant: heresy, heterodoxy, unorthodoxy].
Orthodromic (a.) Of or pertaining to orthodromy.
Orthodromics (n.) The art of sailing in a direct course, or on the arc of a great circle, which is the shortest distance between any two points on the surface of the globe; great-circle sailing; orthodromy.
Orthodromy (n.) The act or art of sailing on a great circle. Orthoepic
Orthoepic (a.) Alt. of Orthoepical.
Orthoepical (a.) Of or pertaining to orthoepy, or correct pronunciation. -- Or`tho*ep"ic*al*ly, adv.
Orthoepist (n.) One who is skilled in orthoepy.
Orthoepist (n.) A practitioner of orthoepy (especially one of the 17th or 18th century scholars who proposed to reform English spelling so it would reflect pronunciation more closely).
Orthoepy (n.) 正音學；發音學；正音 The art of uttering words correctly; a correct pronunciation of words; also, mode of pronunciation.
Orthoepy (n.) The way a word or a language is customarily spoken; "the pronunciation of Chinese is difficult for foreigners"; "that is the correct pronunciation" [syn: pronunciation, orthoepy].
Orthoepy (n.) A term formerly used for the part of phonology that dealt with the `correct' pronunciation of words and its relation to `correct' orthography.
Orthogamy (n.) (Bot.) 【植】直接授粉 Direct fertilization in plants, as when the pollen fertilizing the ovules comes from the stamens of the same blossom; -- opposed to heterogamy.
Orthognathic (a.) Orthognathous.
Orthognathism (n.) (Anat.) The quality or state of being orthognathous. -- Huxley.
Orthognathous (a.) (Anat.) Having the front of the head, or the skull, nearly perpendicular, not retreating backwards above the jaws; -- opposed to prognathous. See Gnathic index, under Gnathic.
Orthogon (n.) (Geom.) A rectangular figure.
Orthogonal (a.) Right-angled; rectangular; as, an orthogonal intersection of one curve with another.
Orthogonal projection. See under Orthographic.
Orthogonal (a.) Not pertinent to the matter under consideration; "an issue extraneous to the debate"; "the price was immaterial"; "mentioned several impertinent facts before finally coming to the point" [syn: extraneous, immaterial, impertinent, orthogonal].
Orthogonal (a.) Statistically unrelated.
Orthogonal (a.) Having a set of mutually perpendicular axes; meeting at right angles; "wind and sea may displace the ship's center of gravity along three orthogonal axes"; "a rectangular Cartesian coordinate system" [syn: orthogonal, rectangular].
Orthogonal (a.) [from mathematics] Mutually independent; well separated; sometimes, irrelevant to. Used in a generalization of its mathematical meaning to describe sets of primitives or capabilities that, like a vector basis in geometry, span the entire ?capability space? of the system and are in some sense non-overlapping or mutually independent. For example, in architectures such as the PDP-11 or VAX where all or nearly all registers can be used interchangeably in any role with respect to any instruction, the register set is said to be orthogonal. Or, in logic, the set of operators not and or is orthogonal, but the set nand, or, and not is not (because any one of these can be expressed in terms of the others).
Also used in comments on human discourse: ?This may be orthogonal to the discussion, but....?
Orthogonal, () At 90 degrees (right angles).
N mutually orthogonal vectors span an N-dimensional vector space, meaning that, any vector in the space can be expressed as a linear combination of the vectors. This is true of any set of N linearly independent vectors.
The term is used loosely to mean mutually independent or well separated. It is used to describe sets of primitives or capabilities that, like linearly independent vectors in geometry, span the entire "capability space" and are in some sense non-overlapping or mutually independent. For example, in logic, the set of operators "not" and "or" is described as orthogonal, but the set "nand", "or", and "not" is not (because any one of these can be expressed in terms of the others).
Also used loosely to mean "irrelevant to", e.g. "This may be orthogonal to the discussion, but ...", similar to "going off at a tangent".
See also orthogonal instruction set.
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Orthogonally (adv.) Perpendicularly; at right angles; as, a curve cuts a set of curves orthogonally.
Orthographer (n.) One versed in orthography; one who spells words correctly. Orthographic
Orthographic (a.) Alt. of Orthographical.
Orthographical (a.) Of or pertaining to orthography, or right spelling; also, correct in spelling; as, orthographical rules; the letter was orthographic.
Orthographical (a.) (Geom.) Of or pertaining to right lines or angles.
Orthographic projection or Orthogonal projection, That projection which is made by drawing lines, from every point to be projected, perpendicular to the plane of projection. Such a projection of the sphere represents its circles as seen in perspective by an eye supposed to be placed at an infinite distance, the plane of projection passing through the center of the sphere perpendicularly to the line of sight.
Orthographic (a.) Of or relating to or expressed in orthography.
Orthographically (adv.) In an orthographical manner.
Orthographically (adv.) According to the rules of proper spelling.
Orthographically (adv.) According to orthographic projection.
Orthographist (n.) One who spells words correctly; an orthographer.
Orthographize (v. t.) To spell correctly or according to usage; to correct in regard to spelling.
Orthography (n.) The art or practice of writing words with the proper letters, according to standard usage; conventionally correct spelling; also, mode of spelling; as, his orthography is vicious.
When spelling no longer follows the pronunciation, but is hardened into orthography. -- Earle.
Orthography (n.) The part of grammar which treats of the letters, and of the art of spelling words correctly.
Orthography (n.) A drawing in correct projection, especially an elevation or a vertical section.
Orthography (n.) The method of spelling the words of a particular language; the system of symbols used for writing a language.
Orthography (n.) The branch of linguistics concerned with how languages are written.
Orthography (n.) A method of representing the sounds of a language by written or printed symbols [syn: orthography, writing system].
Orthography (n.) The science of spelling by the eye instead of the ear. Advocated with more heat than light by the outmates of every asylum for the insane. They have had to concede a few things since the time of Chaucer, but are none the less hot in defence of those to be conceded hereafter.
A spelling reformer indicted For fudge was before the court cicted.
The judge said: "Enough -- His candle we'll snough, And his sepulchre shall not be whicted."
Orthology (n.) 直系同源 The right description of things. [R.] -- Fotherby.
Orthometric (a.) (Crystallog.) Having the axes at right angles to one another; -- said of crystals or crystalline forms.
Orthometry (n.) The art or practice of constructing verses correctly; the laws of correct versification.
Orthomorphic (a.) (Geom.) Having the right form.
Orthomorphic projection, A projection in which the angles in the figure to be projected are equal to the corresponding angles in the projected figure. Orthopaedic
Orthopedic (a.) Alt. of Orthopedical.
Orthopedical (a.) (Med.) Of, pertaining to, or employed in, orthopedy; relating to the prevention or cure of deformities of children, or, in general, of the human body at any age; as, orthopedic surgery; an orthopedic hospital.
Orthopedic (a.) Of or relating to orthopedics; "orthopedic shoes" [syn: orthopedic, orthopaedic, orthopedical].
Orthopedist (n.) (Med.) One who prevents, cures, or remedies deformities, esp. in children.
Orthopedist (n.) A specialist in correcting deformities of the skeletal system (especially in children) [syn: orthopedist, orthopaedist].
Orthopedy (n.) (Med.) Same as orthopedics.
Compare: Orthopedics
Orthopedics (n.) (Med.) The art or practice of correcting disorders or deformities of the spine and joints, or, by extension, any deformities of the human body.
Syn: orthopaedics, orthopedy.
Orthopedics (n.) The branch of medical science concerned with disorders or deformities of the spine and joints [syn: orthopedics, orthopaedics].
Orthophony (n.) The art of correct articulation; voice training.
Orthopinacoid (n.) (Crystallog.) A name given to the two planes in the monoclinic system which are parallel to the vertical and orthodiagonal axes. Orthopnoea
Orthopnoea (n.) Alt. of Orthopny.
Orthopny (n.) (Med.) Specifically, a morbid condition in which respiration can be performed only in an erect posture; by extension, any difficulty of breathing.
Orthopoda (prop. n. pl.) (Zool.) An extinct order of reptiles which stood erect on the hind legs, and resembled birds in the structure of the feet, pelvis, and other parts.
Orthopoxvirus (n.) 正痘病毒屬 Orthopoxvirus is a genus of viruses in the family Poxviridae and subfamily Chordopoxvirinae. Vertebrates, including mammals and humans, and arthropods serve as natural hosts. There are 12 species in this genus. Diseases associated with this genus include smallpox, cowpox, horsepox, camelpox, and monkeypox. [1] [2] The most widely known member of the genus is Variola virus, which causes smallpox. It was eradicated globally by 1977, through the use of Vaccinia virus as a vaccine. The most recently described species is the Alaskapox virus, first isolated in 2015. [3]
Orthopraxy (n.) (Med.) The treatment of deformities in the human body by mechanical appliances.
Orthoptera (prop. n. pl.) (Zool.) An order of mandibulate insects including grasshoppers, locusts, cockroaches, etc. See Illust. under Insect.
Note: The anterior wings are usually thickened and protect the membranous posterior wings, which are larger and fold longitudinally like a fan. They also have chewing mouth parts. The Orthoptera undergo no metamorphosis.
Orthoptera (n.) Grasshoppers and locusts; crickets [syn: Orthoptera, order Orthoptera].
Orthopteran (n.) (Zool.) One of the Orthoptera.
Orthopteran (n.) Any of various insects having leathery forewings and membranous hind wings and chewing mouthparts [syn: orthopterous insect, orthopteron, orthopteran].
Orthopterous (a.) (Zool.) Of or pertaining to the Orthoptera.
Orthorhombic (a.) (Crystallog.) 正交晶；斜方晶的；正交的 Noting the system of crystallization which has three unequal axes at right angles to each other; trimetric. See Crystallization.
Orthoscope (n.) (Physiol.) An instrument designed to show the condition of the superficial portions of the eye.
Orthoscope (n.) An ophthalmoscope with a layer of water to neutralize the refraction of the cornea.
Orthoscope (n.) An instrument for examining the superficial parts of the eye through a layer of water which neutralizes the corneal refraction.
Orthoscopic (a.) (Opt.) Giving an image in correct or normal proportions; giving a flat field of view; as, an orthoscopic eyepiece.
Orthosilicic (a.) (Chem.) Designating the form of silicic acid having the normal or highest number of hydroxyl groups.
Orthospermous (a.) (Bot.) Having the seeds straight, as in the fruits of some umbelliferous plants; -- opposed to coelospermous. -- Darwin.
Orthostade (n.) (Anc. Costume) A chiton, or loose, ungirded tunic, falling in straight folds.
Orthostichies (n. pl. ) of Orthostichy.
Orthostichy (n.) (Bot.) A longitudinal rank, or row, of leaves along a stem.
Orthotomic (a.) (Geom.) Cutting at right angles.
Orthotomic circle (Geom.), That circle which cuts three given circles at right angles.
Orthotomous (a.) (Crystallog.) Having two cleavages at right angles with one another.
Orthotomy (n.) (Geom.) The property of cutting at right angles.
Orthotone (a.) (Gr. Gram.) Retaining the accent; not enclitic; -- said of certain indefinite pronouns and adverbs when used interrogatively, which, when not so used, are ordinarilly enclitic. Orthotropal
Orthotropal (a.) Alt. of Orthotropous.
Orthotropous (a.) (Bot.) Having the axis of an ovule or seed straight from the hilum and chalaza to the orifice or the micropyle; atropous.
Note: This word has also been used (but improperly) to describe any embryo whose radicle points towards, or is next to, the hilum.
Orthotropic (a.) (Bot.) Having the longer axis vertical; -- said of erect stems. -- Encyc. Brit.
Orthoxylene (n.) (Chem.) That variety of xylene ({C6H4(CH3)2) in which the two methyl groups are in the ortho position; a colorless, liquid, combustible hydrocarbon resembling benzene.
Compare: Xylene
Xylene (n.) (Chem.) Any of a group of three metameric hydrocarbons of the aromatic series, found in coal and wood tar, and so named because found in crude wood spirit. They are colorless, oily, inflammable liquids, C6H4.(CH3)2, being dimethyl benzenes, and are called respectively orthoxylene, metaxylene, and paraxylene. Called also xylol.
Note: Each of these xylenes is the nucleus and prototype of a distinct series of compounds.
Ortive (a.) Of or relating to the time or act of rising; eastern; as, the ortive amplitude of a planet.
Ortolan (n.) (Zool.) A European singing bird ({Emberiza hortulana), about the size of the lark, with black wings. It is esteemed delicious food when fattened. Called also bunting.
Ortolan (n.) In England, the wheatear ({Saxicola oenanthe).
Ortolan (n.) In America, the sora, or Carolina rail ({Porzana Carolina). See Sora.
Ortolan (n.) Brownish Old World bunting often eaten as a delicacy [syn: ortolan, ortolan bunting, Emberiza hortulana].
Ortygan (n.) (Zool.) One of several species of East Indian birds of the genera Ortygis and Hemipodius. They resemble quails, but lack the hind toe. See Turnix.
Ortygan (n.) Any of several East Indian birds.
Orval (n.) (Bot.) A kind of sage ({Salvia Horminum).
Orvet (n.) [F.] (Zool.) The blindworm.
Orvietan (n.) A kind of antidote for poisons; a counter poison formerly in vogue. [Obs.]
-ory () An adjective suffix meaning of or pertaining to, serving for; as in auditory, pertaining to or serving for hearing; prohibitory, amendatory, etc.
-ory () A noun suffix denoting that which pertains to, or serves for; as in ambulatory, that which serves for walking; consistory, factory, etc. Oryal
Oryal (n.) Alt. of Oryall.
Compare: Oriel
Oriel (n.) A gallery for minstrels. [Obs.] -- W. Hamper.
Oriel (n.) A small apartment next a hall, where certain persons were accustomed to dine; a sort of recess. [Obs.] -- Cowell.
Oriel (n.) (Arch.) 【建】凸出壁外的窗 A bay window. See Bay window.
The beams that thro' the oriel shine Make prisms in every carven glass. -- Tennyson.
Note: There is no generally admitted difference between a bay window and an oriel. In the United States the latter name is often applied to bay windows which are small, and either polygonal or round; also, to such as are corbeled out from the wall instead of resting on the ground.
Oryall (n.) See Oriel.
Oryctere (n.) (Zool.) The aard-vark ({Orycteropus afer).
Orycterope (n.) (Zool.) Same as Oryctere. (the aardvark, Orycteropus afer).
Oryctognosy (n.) Mineralogy. [Obs.] -- Or`yc*tog*nos"tic, a. -- Or`yc*tog*nos"tic*al, a. [Obs.] -- Or`yc*tog*nos"tic*al*ly, adv. [Obs.]
Oryctography (n.) Description of fossils. [Obs.]
Oryctological (a.) Of or pertaining to oryctology. [Obs.]
Oryctologist (n.) One versed in oryctology. [Obs.]
Oryctology (n.) An old name for paleontology.
Oryctology (n.) An old name for mineralogy and geology.
Oryx (n.) (Zool.) A genus of African antelopes which includes the gemsbok, the leucoryx, the bisa antelope ({O. beisa), and the beatrix antelope ({O. beatrix) of Arabia.
Oryx (n.) Large African antelope with long straight nearly upright horns [syn: oryx, pasang].
Oryza (n.) (Bot.) A genus of grasses including the rice plant; rice.
Oryza (n.) Rice [syn: Oryza, genus Oryza].
Ossa (n. pl. ) of Os.
Os (n.) A bone.