Webster's Unabridged Dictionary - Letter P - Page 141
Pseudobranchiae (n. pl. ) of Pseudobranchia.
Pseudobranchia (n.) (Anat.) 假鰓A rudimentary branchia, or gill. -- Pseu`do*bran"chi*al, a.
Compare: Rudimentary
Rudimentary (a.) Of or pertaining to rudiments; consisting in first principles; elementary; initial; as, rudimental essays.
Rudimentary (a.) (Biol.) Very imperfectly developed; in an early stage of development; embryonic.
Rudimentary (a.) Being or involving basic facts or principles; "the fundamental laws of the universe"; "a fundamental incomatibility between them"; "these rudimentary truths"; "underlying principles" [syn: fundamental, rudimentary, underlying].
Rudimentary (a.) Being in the earliest stages of development; "rudimentary plans."
Rudimentary (a.) Not fully developed in mature animals; "rudimentary wings." [syn: vestigial, rudimentary].
Compare: Branchia
Branchia (n.; pl. Branchi[ae].) (Anat.) A gill; a respiratory organ for breathing the air contained in water, such as many aquatic and semiaquatic animals have.
Branchia (n.) Respiratory organ of aquatic animals that breathe oxygen dissolved in water [syn: gill, branchia].
Compare: Gill
Gill (n.) (Anat.) An organ for aquatic respiration; a branchia.
Fishes perform respiration under water by the gills. -- Ray.
Note: Gills are usually lamellar or filamentous appendages, through which the blood circulates, and in which it is exposed to the action of the air contained in the water. In vertebrates they are appendages of the visceral arches on either side of the neck. In invertebrates they occupy various situations.
Gill (n.) pl. (Bot.) The radiating, gill-shaped plates forming the under surface of a mushroom.
Gill (n.) (Zool.) The fleshy flap that hangs below the beak of a fowl; a wattle.
Gill (n.) The flesh under or about the chin. -- Swift.
Gill (n.) (Spinning) One of the combs of closely ranged steel pins which divide the ribbons of flax fiber or wool into fewer parallel filaments. [Prob. so called from F. aiguilles, needles. -- Ure.]
Gill arches, Gill bars. (Anat.) Same as Branchial arches.
Gill clefts. (Anat.) Same as Branchial clefts. See under Branchial.
Gill cover, Gill lid. See Operculum.
Gill frame, or Gill head (Flax Manuf.), A spreader; a machine for subjecting flax to the action of gills. -- Knight.
Gill net, A flat net so suspended in the water that its meshes allow the heads of fish to pass, but catch in the gills when they seek to extricate themselves.
Gill opening, or Gill slit (Anat.), An opening behind and below the head of most fishes, and some amphibians, by which the water from the gills is discharged. In most fishes there is a single opening on each side, but in the sharks and rays there are five, or more, on each side.
Gill rakes, or Gill rakers (Anat.), Horny filaments, or progresses, on the inside of the branchial arches of fishes, which help to prevent solid substances from being carried into gill cavities.
Gill (n.) A two-wheeled frame for transporting timber. [Prov. Eng.]
Gill (n.) A leech. [Also gell.] [Scot.] -- Jameison.
Gill (n.) A woody glen; a narrow valley containing a stream. [Prov. Eng. & Scot.]
Gill (n.) A measure of capacity, containing one fourth of a pint.
Gill (n.) [Abbrev. from Gillian.] A young woman; a sweetheart; a flirting or wanton girl. "Each Jack with his Gill." -- B. Jonson.
Gill (n.) (Bot.) The ground ivy ({Nepeta Glechoma); -- called also gill over the ground, and other like names.
Gill (n.) Malt liquor medicated with ground ivy.
Gill ale. (a) Ale flavored with ground ivy.
Gill ale. (b) (Bot.) Alehoof.
Gill (n.) A British imperial capacity unit (liquid or dry) equal to 5 fluid ounces or 142.066 cubic centimeters.
Gill (n.) A United States liquid unit equal to 4 fluid ounces.
Gill (n.) Any of the radiating leaflike spore-producing structures on the underside of the cap of a mushroom or similar fungus [syn: gill, lamella].
Gill (n.) Respiratory organ of aquatic animals that breathe oxygen dissolved in water [syn: gill, branchia].
Gill. () A measure of capacity, equal to one-fourth of a pint. Vide Measure.
Pseudo-bulb (n.) (Bot.) 假鱗莖 An aerial corm, or thickened stem, as of some epiphytic orchidaceous plants.
Pseudocarp (n.) (Bot.) 【植】假果 That portion of an anthocarpous fruit which is not derived from the ovary, as the soft part of a strawberry or of a fig.
Pseudocarp (n.) Fruit containing much fleshy tissue besides that of the ripened ovary; as apple or strawberry [syn: accessory fruit, pseudocarp].
Pseudo-china (n.) (Bot.) The false
china root, a plant of the genus Smilax ({Silmax Pseudo-china), found in
Pseudocoele (n.) Same as Pseudocoelia.
Pseudocoelia (n.) (Anat.) The fifth ventricle in the mammalian brain. See Ventricle. -- B. G. Wilder.
Pseudo-cone (n.) (Zool.) One of the soft gelatinous cones found in the compound eyes of certain insects, taking the place of the crystalline cones of others.
Pseudo-cumene (n.) (Chem.) A hydrocarbon of the aromatic series, metameric with mesitylene and cumene, found in coal tar, and obtained as a colorless liquid.
Pseudo-dipteral (a.) (Arch.) Falsely or imperfectly dipteral, as a temple with the inner range of columns surrounding the cella omitted, so that the space between the cella wall and the columns is very great, being equal to two intercolumns and one column.
Pseudo-dipteral (n.) A pseudo-dipteral temple.
Pseudodox (a.) Not true in opinion or doctrine; false.
Pseudodox (n.) 錯誤的觀點 A false opinion or doctrine. "To maintain the atheistical pseudodox which judgeth evil good, and darkness light." -- T. Adams.
Pseudofilariae (n. pl. ) of Pseudofilaria.
Pseudofilaria (n.) (Zool.) One of the two elongated vibratile young formed by fission of the embryo during the development of certain Gregarinae.
Pseudo-galena (n.) (Min.) False galena, or blende. See Blende (a).
Pseudograph (n.) A false writing; a spurious document; a forgery.
Pseudography (n.) False writing; forgery.
Pseudohalteres (n. pl. ) of Pseudohalter.
Pseudohalter (n.) (Zool.) One of the rudimentary front wings of certain insects ({Stylops). They resemble the halteres, or rudimentary hind wings, of Diptera.
Pseudo-heart (n.) (Zool.) Any contractile vessel of invertebrates which is not of the nature of a real heart, especially one of those pertaining to the excretory system.
Pseudo-hyperthophic (a.) (Med.) Falsely hypertrophic; as, pseudo-hypertrophic paralysis, a variety of paralysis in which the muscles are apparently enlarged, but are really degenerated and replaced by fat.
Pseudohypertrophy (n.) Pseudohypertrophy is a term usually used to refer to the calf muscles in Duchenne muscular dystrophy, where the muscles appear hypertrophied while they are in fact weak.
Pseudologist (n.) One who utters falsehoods; a liar.
Pseudology (n.) 謊話；虛言 Falsehood of speech. -- Arbuthnot.
Pseudo-metallic (a.) Falsely or imperfectly metallic; -- said of a kind of luster, as in minerals.
Pseudo-monocotyledonous (a.) (Bot.) Having two coalescent cotyledons, as the live oak and the horse-chestnut.
Pseudomorph (n.) 偽形；【礦】假晶 An irregular or deceptive form.
Pseudomorph (n.) (Crystallog.) A pseudomorphous crystal, as a crystal consisting of quartz, but having the cubic form of fluor spar, the fluor crystal having been changed to quartz by a process of substitution.
Pseudomorphism (n.) (Crystallog.) The state of having, or the property of taking, a crystalline form unlike that which belongs to the species.
Pseudomorphous (a.) Not having the true form.
Pseudomorphous crystal, A crystal which has a form that does not result from its own powers of crystallization.
Pseudonavicullae (n. pl. ) of Pseudonavicella.
Pseudonavicella (n.) [NL.] (Zool.) Same as Pseudonavicula.
Pseudonaviculae (n. pl. ) of Pseudonavicula.
Pseudonavicula (n.) (Zool.) One of the minute spindle-shaped embryos of Gregarinae and some other Protozoa.
Pseudoneuroptera (n. pl.) (Zool.) Division of insects (Zool.) reticulated wings, as in the Neuroptera, but having an active pupa state. It includes the dragon flies, May flies, white ants, etc. By some zoologists they are classed with the Orthoptera; by others, with the Neuroptera.
Pseudoneuropterous (a.) (Zool.) Of or pertaining to the Pseudoneuroptera.
Pseudonym (n.) 假名；筆名；藝名；雅號 A fictitious name assumed for the time, as by an author; a pen name ; an alias. [Written also pseudonyme.]
Pseudonym (n.) A fictitious name used when the person performs a particular social role [syn: pseudonym, anonym, nom de guerre].
Pseudonymity (n.) The using of fictitious names, as by authors.
Pseudonymous (a.) Bearing a false or fictitious name; as, a pseudonymous work. -- Pseu*don"y*mous*ly, adv. -- Pseu*don"y*mous*ness, n.
Pseudo-peripteral (a.) (Arch.) Falsely or imperfectly peripteral, as a temple having the columns at the sides attached to the walls, and an ambulatory only at the ends or only at one end.
Pseuso-peripteral (n.) A pseudo-peripteral temple. -- Oxf. Gloss.
Pseudopod (n.) (Biol.) Any protoplasmic filament or irregular process projecting from any unicellular organism, or from any animal or plant call.
Pseudopod (n.) (Zool.) A rhizopod.
Pseudopodial (a.) Of or pertaining to a pseudopod, or to pseudopodia. See Illust. of Heliozoa.
Pseudopodia (n. pl. ) of Pseudopodium.
Pseudopodium (n.) [NL.] Same as Pseudopod.
Pseudopupae (n. pl. ) of Pseudopupa.
Pseudopupas (n. pl. ) of Pseudopupa.
Pseudopupa (n.) (Zool.) A stage intermediate between the larva and pupa of bees and certain other hymenopterous insects.
Pseudorhabdite (n.) (Zool.) One of the peculiar rodlike corpuscles found in the integument of certain Turbellaria.
They are filled with a soft granular substance.
Pseudo-romantic (a.) Falsely romantic.
The false taste, the pseudo-romantic rage. -- De Quincey.
Pseudoscope (n.) (Opt.) 反影鏡；幻視鏡 An instrument which exhibits objects with their proper relief reversed; -- an effect opposite to that produced by the stereoscope. -- Wheatstone.
Pseudoscopic (a.) (Opt.) 幻視鏡的 Of, pertaining to, or formed by, a pseudoscope; having its parts appearing with the relief reversed; as, a pseudoscopic image.
Pseudoscorpiones (n. pl.) (Zool.) An order of Arachnoidea having the palpi terminated by large claws, as in the scorpions, but destitute of a caudal sting; the false scorpions. Called also Pseudoscorpii, and Pseudoscorpionina. See Illust. of Book scorpion, under Book.
Pseudoscorpiones (n.) False scorpions [syn: Chelonethida, order Chelonethida, Pseudoscorpionida, order Pseudoscorpionida, Pseudoscorpiones, order Pseudoscorpiones].
Pseudosphere (n.) (Geom.) The surface of constant negative curvature generated by the revolution of a tractrix. This surface corresponds in non-Euclidian space to the sphere in ordinary space. An important property of the surface is that any figure drawn upon it can be displaced in any way without tearing it or altering in size any of its elements.
Pseudospore (n.) (Bot.) A peculiar reproductive cell found in some fungi.
-lae (n. pl. ) of Pseudostella.
Pseudostella (n.) (Astron.) Any starlike meteor or phenomenon. [R.]
Pseudostomata (n. pl. ) of Pseudostoma.
Pseudostoma (n.) (Anat.) A group of cells resembling a stoma, but without any true aperture among them.
Pseudo-symmetric (a.) (Crystallog.) Exhibiting pseudo-symmetry.
Pseudo-symmetry (n.) (Crystallog.) A kind of symmetry characteristic of certain crystals which from twinning, or other causes, come to resemble forms of a system other than that to which they belong, as the apparently hexagonal prisms of aragonite.
Pseudotetramera (n. pl.) (Zool.) A division of beetles having the fifth tarsal joint minute and obscure, so that there appear to be but four joints. -- Pseu`do*te*tram"er*al, a.
Pseudotineae (n. pl. ) of Pseudotinea.
Pseudotinea (n.) (Zool.) The bee moth, or wax moth ({Galleria).
Pseudoturbinal (a.) (Anat.) See under Turbinal.
Pseudovaries (n. pl. ) of Pseudovary.
Pseudovary (n.) (Zool.) The organ in which pseudova are produced; -- called also pseudovarium.
Pseudova (n. pl. ) of Pseudovum.
Pseudovum (n.) (Zool.) An egglike germ produced by the agamic females of some insects and other animals, and by the larvae of certain insects. It is capable of development without fertilization. See Illust. of Paedogenesis.
Pshaw (interj.) 啐，哼（表示輕蔑、不耐煩、討厭等） Pish! pooch! -- an exclamation used as an expression of contempt, disdain, dislike, etc. [Written also psha.]
Pshaw (v. i.) 啐一聲，哼一聲 [（+at）] To express disgust or contemptuous disapprobation, as by the exclamation " Pshaw!"
The goodman used regularly to frown and pshaw wherever this topic was touched upon. -- Sir W. Scott.
Psilanthropic (a.) Pertaining to, or embodying, psilanthropy. "A psilanthropic explanation." -- Coleridge.
Psilanthropism (n.) 基督為凡人之信仰 Psilanthropy.
Psilanthropist (n.) One who believes that Christ was a mere man. -- Smart.
Psilanthropy (n.) 基督為凡人論 The doctrine of the merely human existence of Christ.
Psilology (n.) Love of empty of empty talk or noise. -- Coleridge.
Psilomelane (n.) (Min.) A hydrous oxide of manganese, occurring in smooth, botryoidal forms, and massive, and having an iron-black or steel-gray color.
Psilomelane (n.) A mineral consisting of hydrated basic oxide of manganese and barium; a source of manganese.
Psilopaedes (n. pl.) (Zool.) Birds whose young at first have down on the pterylae only; -- called also Gymnopaedes.
Psilopaedic (a.) (Zool.) Having down upon the pterylae only; -- said of the young of certain birds.
Psilosopher (n.) A superficial or narrow pretender to philosophy; a sham philosopher. Psittaceous
Psittaceous (a.) Alt. of Psittacid.
Psittacid (a.) (Zool.) Of or pertaining to the parrots, or the Psittaci.
Psittacid (n.) One of the Psittaci.
Psittaci (n. pl.) [NL.] (Zool.) The order of birds which comprises the parrots.
Psitta-co-fulvine (n.) A yellow pigment found in the feathers of certain parrots.
Psoas (n.) (Anat.) An internal muscle arising from the lumbar vertebrae and inserted into the femur. In man there are usually two on each side, and the larger one, or great psoas, forms a part of the iliopsoas.
Psoas (n.) Either of two muscles of the abdomen and pelvis that flex the trunk and rotate the thigh.
Psora (n.) (Med.) A cutaneous disease; especially, the itch.
Psoriasis (n.) (Med.) The state of being affected with psora. [Obs.]
Psoriasis (n.) A cutaneous disease, characterized by imbricated silvery scales, affecting only the superficial layers of the skin.
Psoriasis (n.) A chronic skin disease characterized by dry red patches covered with scales; occurs especially on the scalp and ears and genitalia and the skin over bony prominences.
Psoric (a.) (Med.) Of or pertaining to psora.
Psorosperm (n.) (Zool.) A minute parasite, usually the young of Gregarinae, in the pseudonavicula stage.
Psychagogic (a.) Attractive; persuasive. -- J. Morley.
Psychagogue (n.) A necromancer. [R.]
Psychal (a.) Of or pertaining to the soul; psychical. -- Bayne.
Psyche (n.) (Class Myth.) （希臘羅馬神話）（靈魂化身的）美女；（p-）心靈，精神 A lovely maiden, daughter of a king and mistress of Eros, or Cupid. She is regarded as the personification of the soul.
Psyche (n.) The soul; the vital principle; the mind.
Psyche (n.) A cheval glass.
Psyche (n.) That which is responsible for one's thoughts and feelings; the seat of the faculty of reason; "his mind wandered"; "I couldn't get his words out of my head" [syn: mind, head, brain, psyche, nous].
Psyche (n.) The immaterial part of a person; the actuating cause of an individual life [syn: soul, psyche].
Psyche (n.) (Greek mythology) A beautiful princess loved by Cupid who visited her at night and told her she must not try to see him; became the personification of the soul.
Psychian (n.) (Zool.) Any small moth of the genus Psyche and allied genera (family Psychidae). The larvae are called basket worms. See Basket worm, under Basket. Psychiatria
Psychiatria (n.) Alt. of Psychiatry.
Psychiatria (n.) (Med.) The application of the healing art to mental diseases. -- Dunglison.