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A salt of fumaric acid.

Pertaining to, or derived from, fumitory (Fumaria officinalis). Fumaric acid (Chem.), a widely occurring organic acid, exttracted from fumitory as a white crystallline substance, C2H2(CO2H)2, and produced artificially in many ways, as by the distillation of malic acid; boletic acid. It is found also in the lichen, Icel…

ts; esp., the apparatus used to destroy San José scale on nursery stock, with hydrocyanic acid vapor.

air. Mixed with water it solidifies to the so-called butter of tin. -- Fuming sulphuric acid. (Chem.) Same as Disulphuric acid, uder Disulphuric.

A salt of fungic acid. [Formerly written also fungiate.]

Pertaining to, or obtained from, mushrooms; as, fungic acid.

4H4O, obtained by distilling certain organic substances, as pine wood, salts of pyromucic acid, etc.; -- called also tetraphenol.

Pertaining to, or derived from, furile; as, furilic acid.

Pertaining to, or derived from, the cod (Gadus); -- applied to an acid obtained from cod-liver oil, viz., gadic acid.

Pertaining to hypogeic acid; -- applied to an acid obtained from hypogeic acid.

Of or pertaining to milk; got from milk; as, galactic acid.

the decomposition of milk sugar, and also from certain gums. When oxidized it forms mucic acid. Called also lactose (though it is not lactose proper).

A salt of gallic acid.

A red crystalline dyestuff, obtained by heating together pyrogallic and phthalic acids.

Pertaining to, or derived from, galls, nutgalls, and the like. Gallic acid (Chem.), an organic acid, very widely distributed in the vegetable kingdom, being found in the free state in galls, tea, etc., and produced artificially. It is a white, crystalline substance, C6H2(HO)3.CO2H, with an astringent taste, and is a st…

Pertaining to the tannin or nutgalls. Gallotannic acid. See Tannic acid, under Tannic.

ath of melted zink, after its surface has been cleaned by friction with the aid of dilute acid.

An extract of madder by sulphuric acid. It consists essentially of alizarin.

stomach attended with fever. -- Gastric juice (Physiol.), a thin, watery fluid, with an acid reaction, secreted by a peculiar set of glands contained in the mucous membrane of the stomach. It consists mainly of dilute hydrochloric acid and the ferment pepsin. It is the most important digestive fluid in the body, but…

Pertaining to, or derived from, earthy or vegetable mold. Geic acid. (Chem.) See Humin.