Webster's Unabridged Dictionary - Letter O - Page 44
Oxalyl (n.) (Chem.) A hydrocarbon radical ({C2O2) regarded as a residue of oxalic acid and occurring in derivatives of it.
Oxalyl (n.) (Chem.) An old name for carbonyl.
Oxalyl (n.) (Chem.) An old name for carboxyl.
Oxamate (n.) (Chem.) A salt of oxamic acid.
Oxamethane (n.) (Chem.) Ethyl oxamate, obtained as a white scaly crystalline powder.
Oxamethylane (n.) (Chem.) Methyl oxamate, obtained as a pearly white crystalline substance.
Oxamic (a.) (Chem.) Pertaining to, or designating, an acid NH2.C2O2.HO obtained as a fine crystalline powder, intermediate between oxalic acid and oxamide. Its ammonium salt is obtained by boiling oxamide with ammonia.
Oxamide (n) (Chem.) A white crystalline neutral substance ({C2O2(NH2)2) obtained by treating ethyl oxalate with ammonia. It is the acid amide of oxalic acid. Formerly called also oxalamide.
Oxamidine (n.) (Chem.) One of a series of bases containing the amido and the isonitroso groups united to the same carbon atom.
Oxanilamide (n.) (Chem.) A white crystalline nitrogenous substance, obtained indirectly by the action of cyanogen on aniline, and regarded as an anilide of oxamic acid; -- called also phenyl oxamide.
Oxanilate (n.) (Chem.) A salt of oxanilic acid.
Oxanilic (a.) (Chem.) Pertaining to, or derived from, oxalic acid and aniline; -- used to designate an acid obtained in white crystalline scales by heating these substances together.
Oxanilide (n.) (Chem.) A white crystalline substance, resembling oxanilamide, obtained by heating aniline oxalate, and regarded as a double anilide of oxalic acid; -- called also diphenyl oxamide.
Oxbane (n.) (Bot.) A poisonous bulbous plant ({Buphane toxicaria) of the Cape of Good Hope.
Oxbird (n.) (Zool.) The dunlin.
Oxbird (n.) (Zool.) The sanderling.
Oxbird (n.) (Zool.) An African weaver bird ({Textor alector).
Oxbiter (n.) (Zool.) The cow blackbird. [Local, U. S.]
Oxbow (n.) A frame of wood, bent into the shape of the letter U, and embracing an ox's neck as a kind of collar, the upper ends passing through the bar of the yoke; also, anything so shaped, as a bend in a river.
Oxeye (n.) (Bot.) The oxeye daisy. See under Daisy.
Oxeye (n.) (Bot.) The corn camomile ({Anthemis arvensis).
Oxeye (n.) (Bot.) A genus of composite plants ({Buphthalmum) with large yellow flowers.
Oxeye (n.) (Zool.) A titmouse, especially the great titmouse (Parus major) and the blue titmouse ({Parus coeruleus). [Prov. Eng.]
Oxeye (n.) (Zool.) The dunlin.
Oxeye (n.) (Zool.) A fish; the bogue, or box.
Creeping oxeye (Bot.) A West Indian composite plant ({Wedelia carnosa).
Seaside oxeye (Bot.), A West Indian composite shrub ({Borrichia arborescens).
Compare: Plover
Plover (n.) (Zool.) Any one of numerous species of limicoline birds belonging to the family Charadrid[ae], and especially those belonging to the subfamily Charadrins[ae]. They are prized as game birds.
Plover (n.) (Zool.) Any grallatorial bird allied to, or resembling, the true plovers, as the crab plover ({Dromas ardeola); the American upland, plover ({Bartramia longicauda); and other species of sandpipers.
Note: Among the more important species are the blackbellied plover or blackbreasted plover ({Charadrius squatarola) of America and Europe; -- called also gray plover, bull-head plover, Swiss plover, sea plover, and oxeye; the golden plover (see under Golden); the ring plover or ringed plover ({Aegialitis hiaticula). See Ringneck. The piping plover ({Aegialitis meloda}); Wilson's plover ({Aegialitis Wilsonia); the mountain plover ({Aegialitis montana); and the semipalmated plover ({Aegialitis semipalmata), are all small American species.
Bastard plover (Zool.), The lapwing.
Long-legged plover, or yellow-legged plover. See Tattler.
Plover's page, The dunlin. [Prov. Eng.]
Rock plover, or Stone plover, The black-bellied plover. [Prov. Eng.]
Whistling plover. (a) The golden plover.
Whistling plover. (b) The black-bellied plover. Plow
Oxeyed (a.) Having large, full eyes, like those of an ox.
Oxfly (n.) The gadfly of cattle.
Oxford (a.) Of or pertaining to the city or university of Oxford, England.
Oxgang (n.) See Bovate.
Oxgoad (n.) A goad for driving oxen.
Oxhead (n.) Literally, the head of an ox (emblem of cuckoldom); hence, a dolt; a blockhead.
Oxheal (n.) Same as Bear's-foot.
Oxheart (n.) A large heart-shaped cherry, either black, red, or white.
Oxhide (n.) 牛皮 The skin of an ox, or leather made from it.
Oxhide (n.) (O. Eng. Law) A measure of land. See 3d Hide.
Oxid (n.) (Chem.) See Oxide.
Oxidability (n.) Capability of being converted into an oxide.
Oxidable (a.) Capable of being converted into an oxide.
Oxidant (n.) 氧化劑 A substance that oxidizes another substance [syn: oxidant, oxidizer, oxidiser, oxidizing agent].
Oxidated (imp. & p. p.) of Oxidate
Oxidating (p. pr. & vb. n.) of Oxidate
Oxidate (v. t.) 使氧化；氧化 To oxidize. [Obs.]
Oxidate (v.) Enter into a combination with oxygen or become converted into an oxide; "This metal oxidizes easily" [syn: oxidise, oxidize, oxidate].
Oxidate (v.) Add oxygen to or combine with oxygen [syn: oxidize, oxidise, oxidate] [ant: deoxidise, deoxidize, reduce].
Oxidation (n.) 氧化（作用）[U] The act or process of oxidizing, or the state or result of being oxidized.
Oxidation (n.) The process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction [syn: {oxidation}, {oxidization}, {oxidisation}].
Oxidator (n.) 氧化劑；氧化器 An oxidizer. [Obs.]
Oxidator (n.) 和氧器（一種由體外和氧於靜脈血之醫療器械） A contrivance for causing a current of air to impinge on the flame of the Argand lamp; -- called also {oxygenator}.
Oxide (n.) (Chem.) 氧化物 [C] [U] A binary compound of oxygen with an atom or radical, or a compound which is regarded as binary; as, iron oxide, ethyl oxide, nitrogen oxide, etc.
Note: In the chemical nomenclature adopted by Guyton de Morveau, Lavoisier, and their associates, the term oxides was made to include all compounds of oxygen which had no acid (F. acide) properties, as contrasted with the acids, all of which were at that time supposed to contain oxygen. The orthography {oxyde}, {oxyd}, etc., was afterwards introduced in ignorance or disregard of the true etymology, but these forms are now obsolete in English. The spelling {oxid} is not common.
Oxide (n.) Any compound of oxygen with another element or a radical.
Oxidizable (a.) [化] 可氧化的 Capable of being oxidized.
Oxidizable (a.) Capable of undergoing a chemical reaction with oxygen.
Oxidized (imp. & p. p.) of Oxidize
Oxidizing (p. pr. & vb. n.) of Oxidize
Oxidize (v. t.) (Chem.) (v. t.) 使氧化；使生鏽 (v. i.) 氧化；生鏽 To combine with oxygen, or subject to the action of oxygen, or of an oxidizing agent. Specifically:
Oxidize (v. t.) To combine with oxygen or with more oxygen; to add oxygen to; as, to oxidize nitrous acid so as to form nitric acid.
Oxidize (v. t.) To remove hydrogen from (anything), as by the action of oxygen; as, to oxidize alcohol so as to form aldehyde.
Oxidize (v. t.) To subject to the action of oxygen or of an oxidizing agent, so as to bring to a higher grade, as an -ous compound to an -ic compound; as, to oxidize mercurous chloride to mercuric chloride.
Note: In certain cases to oxidize is identical with to acidify; for, in nearly all cases, the more oxygen a substance contains the more nearly does it approximate to acid qualities; thus, by oxidation many elements, as sulphur, nitrogen, carbon, chromium, manganese, etc., pass into compounds which are acid anhydrides, and thus practically in the acid state.
Compare: Sulphur
Sulphur (n.), Sulfur (S), 硫，硫磺 Also spelled sulphur, nonmetallic chemical element belonging to the oxygen group (Group 16 [VIa] of the periodic table), one of the most reactive of the elements. Pure sulfur is a tasteless, odourless, brittle solid that is pale yellow in colour, a poor conductor of electricity, and insoluble in water. It reacts with all metals except gold and platinum, forming sulfides; it also forms compounds with several nonmetallic elements. Millions of tons of sulfur are produced each year, mostly for the manufacture of sulfuric acid, which is widely used in industry.
Oxidize (v.) Enter into a combination with oxygen or become converted into an oxide; "This metal oxidizes easily" [syn: oxidise, oxidize, oxidate].
Oxidize (v.) Add oxygen to or combine with oxygen [syn: oxidize, oxidise, oxidate] [ant: deoxidise, deoxidize, reduce].
Oxidizement (n.) (Uncountable) (Archaic) 氧化（作用）[U ] Oxidation.
Oxidizer (n.) 氧化劑；氧化器 An agent employed in oxidation, or which facilitates or brings about combination with oxygen; as, nitric acid, chlorine, bromine, etc., are strong oxidizers.
Oxidulated (a.) Existing in the state of a protoxide; -- said of an oxide.
Oxime (n.) One of a series of isonitroso derivatives obtained by the action of hydroxylamine on aldehydes or ketones.
Oxindol (n.) A white crystalline nitrogenous substance (C8H7NO) of the indol group, obtained by the reduction of dioxindol. It is a so-called lactam compound.
Oxiodic (a.) Pertaining to, or designating, certain compounds of iodine and oxygen.
Oxlike (a.) Characteristic of, or like, an ox.
Oxlip (n.) The great cowslip (Primula veris, var. elatior).
Oxonate (n.) A salt of oxonic acid.
Oxonian (a.) Of or relating to the city or the university of Oxford, England.
Oxonian (n.) A student or graduate of Oxford University, in England.
Oxonic (a.) Pertaining to, or designating, a complex nitrogenous acid (C4H5N3O4) not known in the free state, but obtained, in combination with its salts, by a slow oxidation of uric acid, to which it is related.
Oxpecker (n.) An African bird of the genus Buphaga; the beefeater.
Oxshoe (n.) A shoe for oxen, consisting of a flat piece of iron nailed to the hoof.
Oxter (n.) The armpit; also, the arm.
Oxtongue (n.) A name given to several plants, from the shape and roughness of their leaves; as, Anchusa officinalis, a kind of bugloss, and Helminthia echioides, both European herbs.
Oxy- () A prefix, also used adjectively
Oxy- () A compound containing oxygen.
Oxy- () A compound containing the hydroxyl group, more properly designated by hydroxy-. See Hydroxy-.
Oxyacetic (a.) Hydroxyacetic; designating an acid called also glycolic acid.
Oxyacid (n.) An acid containing oxygen, as chloric acid or sulphuric acid; -- contrasted with the hydracids, which contain no oxygen, as hydrochloric acid. See Acid, and Hydroxy-.
Oxyammonia (n.) Same as Hydroxylamine.
Oxybenzene (n.) Hydroxy benzene. Same as Phenol.
Oxybenzoic (a.) Hydroxybenzoic; pertaining to, or designating, any one of several hydroxyl derivatives of benzonic acid, of which the commonest is salicylic acid.
Oxybromic (a.) Pertaining to, or designating, certain compounds of oxygen and bromine.
Oxybutyric (a.) Hydroxybutyric; designating any one of a group of metameric acids (C3H6.OH.CO2H).
Oxycalcium (a.) Of or pertaining to oxygen and calcium; as, the oxycalcium light. See Drummond light.
Oxycaproic (a.) See Leucic.
Oxychloric (a.) Of, pertaining to, or designating in general, certain compounds containing oxygen and chlorine.
Oxychloric (a.) Formerly designating an acid now called perchloric acid. See Perchloric.
Oxychloride (n.) A ternary compound of oxygen and chlorine; as, plumbic oxychloride.
Oxycrate (n.) A Mixture of water and vinegar.
Oxycymene (n.) Hydroxy cymene. Same as Carvacrol.
Oxygen (n.) A colorless, tasteless, odorless, gaseous element occurring in the free state in the atmosphere, of which it forms about 23 per cent by weight and about 21 per cent by volume, being slightly heavier than nitrogen. Symbol O. Atomic weight 15.96.
Oxygen (n.) Chlorine used in bleaching.
Oxygen (n.) [ U ] (symbol O) (B2) 氧，氧氣 A chemical element that is a gas with no smell or colour. Oxygen forms a large part of the air on earth, and is needed by animals and plants to live.
Oxygenated (imp. & p. p.) of Oxygenate
Oxygenating (p. pr. & vb. n.) of Oxygenate
Oxygenate (v. t.) To unite, or cause to combine, with oxygen; to treat with oxygen; to oxidize; as, oxygenated water (hydrogen dioxide).
Oxygenation (n.) The act or process of combining or of treating with oxygen; oxidation.
Oxygenator (n.) An oxidizer.
Oxygenic (a.) Pertaining to, containing, or resembling, oxygen; producing oxygen.
Oxygenium (n.) The technical name of oxygen.
Oxygenizable (a.) Oxidizable.
Oxygenized (imp. & p. p.) of Oxygenize
Oxygenizing (p pr. & vb. n.) of Oxygenize
Oxygenize (v. t.) To oxidize.
Oxygenizement (n.) Oxidation.
Oxygenous (a.) Oxygenic.