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Propionic :: Propionic (a.) Pertaining to, derived from, or designating, an organic acid which is produced in the distillation of wood, in the fermentation of various organic substances, as glycerin, calcium lactate, etc., and is obtained as a colorless liquid having a sharp, pungent odor. Propionic acid is so called because it is the first or lowest member of the fatty acid series whose salts have a fatty feel..

Hexine :: Hexine (n.) A hydrocarbon, C6H10, of the acetylene series, obtained artificially as a colorless, volatile, pungent liquid; -- called also hexoylene..

Salicylal :: Salicylal (n.) A thin, fragrant, colorless oil, HO.C6H4.CHO, found in the flowers of meadow sweet (Spiraea), and also obtained by oxidation of salicin, saligenin, etc. It reddens on exposure. Called also salicylol, salicylic aldehyde, and formerly salicylous, / spiroylous, acid..

Levulin :: Levulin (n.) A substance resembling dextrin, obtained from the bulbs of the dahlia, the artichoke, and other sources, as a colorless, spongy, amorphous material. It is so called because by decomposition it yields levulose..

Ozone :: Ozone (n.) A colorless gaseous substance (O/) obtained (as by the silent discharge of electricity in oxygen) as an allotropic form of oxygen, containing three atoms in the molecule. It is a streng oxidizer, and probably exists in the air, though by he ordinary tests it is liable to be confused with certain other substances, as hydrogen dioxide, or certain oxides of nitrogen. It derives its name from its peculiar odor, which resembles that of weak chlorine..

Colorless :: Colorless (a.) Free from any manifestation of partial or peculiar sentiment or feeling; not disclosing likes, dislikes, prejudice, etc.; as, colorless music; a colorless style; definitions should be colorless..

Forlore :: Forlore (p. p.) of Forles.

Hydrazine :: Hydrazine (n.) Any one of a series of nitrogenous bases, resembling the amines and produced by the reduction of certain nitroso and diazo compounds; as, methyl hydrazine, phenyl hydrazine, etc. They are derivatives of hydrazine proper, H2N.NH2, which is a doubled amido group, recently (1887) isolated as a stable, colorless gas, with a peculiar, irritating odor. As a base it forms distinct salts. Called also diamide, amidogen, (or more properly diamidogen), etc..

Pyrosulphuric :: Pyrosulphuric (a.) Pertaining to, or designating, an acid called also disulphuric acid) obtained by distillation of certain sulphates, as a colorless, thick, oily liquid, H2S2O7 resembling sulphuric acid. It is used in the solution of indigo, in the manufacture of alizarin, and in dehydration..

Leptocardia :: Leptocardia (n. pl.) The lowest class of Vertebrata, including only the Amphioxus. The heart is represented only by a simple pulsating vessel. The blood is colorless; the brain, renal organs, and limbs are wanting, and the backbone is represented only by a simple, unsegmented notochord. See Amphioxus..

Pyridine :: Pyridine (n.) A nitrogenous base, C5H5N, obtained from the distillation of bone oil or coal tar, and by the decomposition of certain alkaloids, as a colorless liquid with a peculiar pungent odor. It is the nucleus of a large number of organic substances, among which several vegetable alkaloids, as nicotine and certain of the ptomaines, may be mentioned. See Lutidine..

Diethylamine :: Diethylamine (n.) A colorless, volatile, alkaline liquid, NH(C2H5)2, having a strong fishy odor resembling that of herring or sardines. Cf. Methylamine..

Pyrrol :: Pyrrol (n.) A nitrogenous base found in coal tar, bone oil, and other distillates of organic substances, and also produced synthetically as a colorless liquid, C4H5N, having on odor like that of chloroform. It is the nucleus and origin of a large number of derivatives. So called because it colors a splinter of wood moistened with hydrochloric acid a deep red..

Paraconine :: Paraconine (n.) A base resembling and isomeric with conine, and obtained as a colorless liquid from butyric aldehyde and ammonia..

Delphinine :: Delphinine (n.) A poisonous alkaloid extracted from the stavesacre (Delphinium staphisagria), as a colorless amorphous powder..

Propylene :: Propylene (n.) A colorless gaseous hydrocarbon (C3H6) of the ethylene series, having a garlic odor. It occurs in coal gas, and is produced artificially in various ways. Called also propene..

Allantoin :: Allantoin (n.) A crystalline, transparent, colorless substance found in the allantoic liquid of the fetal calf; -- formerly called allantoic acid and amniotic acid..

Imitate :: Imitate (v. t.) To resemble (another species of animal, or a plant, or inanimate object) in form, color, ornamentation, or instinctive habits, so as to derive an advantage thereby; sa, when a harmless snake imitates a venomous one in color and manner, or when an odorless insect imitates, in color, one having secretion offensive to birds..

Taurine :: Taurine (n.) A body occurring in small quantity in the juices of muscle, in the lungs, and elsewhere, but especially in the bile, where it is found as a component part of taurocholic acid, from which it can be prepared by decomposition of the acid. It crystallizes in colorless, regular six-sided prisms, and is especially characterized by containing both nitrogen and sulphur, being chemically amido-isethionic acid, C2H7NSO3..

Hexane :: Hexane (n.) Any one of five hydrocarbons, C6H14, of the paraffin series. They are colorless, volatile liquids, and are so called because the molecule has six carbon atoms..

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