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Derivative :: Derivative (n.) A derived function; a function obtained from a given function by a certain algebraic process.

Tetramethylene :: Tetramethylene (n.) A hypothetical hydrocarbon, C4H8, analogous to trimethylene, and regarded as the base of well-known series or derivatives..

Pentyl :: Pentyl (n.) The hypothetical radical, C5H11, of pentane and certain of its derivatives. Same as Amyl..

Conine :: Conine (n.) A powerful and very poisonous vegetable alkaloid found in the hemlock (Conium maculatum) and extracted as a colorless oil, C8H17N, of strong repulsive odor and acrid taste. It is regarded as a derivative of piperidine and likewise of one of the collidines. It occasions a gradual paralysis of the motor nerves. Called also coniine, coneine, conia, etc. See Conium, 2..

Valeryl :: Valeryl (n.) The hypothetical radical C5H9O, regarded as the essential nucleus of certain valeric acid derivatives..

Quinoxaline :: Quinoxaline (n.) Any one of a series of complex nitrogenous bases obtained by the union of certain aniline derivatives with glyoxal or with certain ketones.

Phenyl :: Phenyl (n.) A hydrocarbon radical (C6H5) regarded as the essential residue of benzene, and the basis of an immense number of aromatic derivatives..

Furfurol :: Furfurol (n.) A colorless oily liquid, C4H3O.CHO, of a pleasant odor, obtained by the distillation of bran, sugar, etc., and regarded as an aldehyde derivative of furfuran; -- called also furfural..

Xylamide :: Xylamide (n.) An acid amide derivative of xylic acid, obtained as a white crystalline substance..

Thienyl :: Thienyl (n.) The hypothetical radical C4H3S, regarded as the essential residue of thiophene and certain of its derivatives..

Toluidine :: Toluidine (n.) Any one of three metameric amido derivatives of toluene analogous to aniline, and called respectively orthtoluidine, metatoluidine, and paratoluidine; especially, the commonest one, or paratoluidine, which is obtained as a white crystalline substance..

Tyrosin :: Tyrosin (n.) A white crystalline nitrogenous substance present in small amount in the pancreas and spleen, and formed in large quantity from the decomposition of proteid matter by various means, -- as by pancreatic digestion, by putrefaction as of cheese, by the action of boiling acids, etc. Chemically, it consists of oxyphenol and amidopropionic acid, and by decomposition yields oxybenzoic acid, or some other benzol derivative..

Propidene :: Propidene (n.) The unsymmetrical hypothetical hydrocarbon radical, CH3.CH2.CH, analogous to ethylidene, and regarded as the type of certain derivatives of propane; -- called also propylidene..

Safranine :: Safranine (n.) An orange-red nitrogenous dyestuff produced artificially by oxidizing certain aniline derivatives, and used in dyeing silk and wool; also, any one of the series of which safranine proper is the type..

Nitrophnol :: Nitrophnol (n.) Any one of a series of nitro derivatives of phenol. They are yellow oily or crystalline substances and have well-defined acid properties, as picric acid..

Tartrazine :: Tartrazine (n.) An artificial dyestuff obtained as an orange-yellow powder, and regarded as a phenyl hydrazine derivative of tartaric and sulphonic acids..

Phorone :: Phorone (n.) A yellow crystalline substance, having a geraniumlike odor, regarded as a complex derivative of acetone, and obtained from certain camphor compounds..

Tartramic :: Tartramic (a.) Of, pertaining to, or designating, an acid which is the primary acid amide derivative of tartaric acid..

Derivative :: Derivative (a.) Obtained by derivation; derived; not radical, original, or fundamental; originating, deduced, or formed from something else; secondary; as, a derivative conveyance; a derivative word..

Coerulignone :: Coerulignone (n.) A bluish violet, crystalline substance obtained in the purification of crude wood vinegar. It is regarded as a complex quinone derivative of diphenyl; -- called also cedriret..

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