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A bitter white crystalline substance obtained by the decomposition of phlorizin, and formerly used to some extent as a substitute for quinine.

A sweet white crystalline substance, metameric with pyrogallol, and obtained by the decomposition of phloretin, and from certain gums, as catechu, kino, etc. It belongs to the class of phenols. [Called also phloroglucinol.]

suggests that the carbohydrates are secretion products of the chloroplasts, derived from decomposition of previously formed proteids. The food substances are usually quickly translocated, those that accumulate being changed to starch, which appears in the cells almost simultaneously with the sugars. The chloroplasts p…

A colorless oily liquid related to the ketones, and obtained by the decomposition of pinacone; hence, by extension, any one of the series of which pinacolin proper is the type. [Written also pinacoline.]

having a hot, peppery, ammoniacal odor. It is related to pyridine, and is obtained by the decomposition of piperine.

A hydrocarbon obtained by decomposition of certain piperidine derivatives.

ormal or actual course or procedure; regular proceeding; as, the process of vegetation or decomposition; a chemical process; processes of nature. Tell her the process of Antonio's end. Shak.

A nitrogenous phosphorized principle found in brain tissue. By decomposition it yields neurine, fatty acids, and other bodies.

Pertaining to, or designating, an acid obtained by the decomposition of vulpinic acid, as a white crystalline substance.

A substance, usually nitrogenous, which is liable to undergo decomposition when in contact with air and moisture at ordinary temperatures.

Tending to decomposition or decay; decomposed; rotten; -- said of animal or vegetable matter; as, putrid flesh. See Putrefaction.

trogenous 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 ptomaïnes,…

Producing decomposition, as diseases which are supposed to be accompanied or caused by decomposition.

gdom, as is apple-tree bark, horse- chestnut leaves, etc., but originally obtained by the decomposition of quercitrin. Called also meletin.

Having a rank smell or taste, from chemical change or decomposition; musty; as, rancid oil or butter.

gular prism included between the two sides through which the refracted beam passes in the decomposition of light. -- Refracting telescope. (Opt.) See under Telescope.

A vessel in which substances are subjected to distillation or decomposition by heat. It is made of different forms and materials for different uses, as a bulb of glass with a curved beak to enter a receiver for general chemical operations, or a cylinder or semicylinder of cast iron for the manufacture of gas in gas wor…

eath] , death stiffening; the rigidity of the muscles that occurs at death and lasts till decomposition sets in. It is due to the formation of myosin by the coagulation of the contents of the individual muscle fibers.

r plants, and obtained as a bitter yellow crystalline substance which yields quercitin on decomposition.

A phenol alcohol obtained, by the decomposition of salicin, as a white crystalline substance; -- called also hydroxy-benzyl alcohol.