FROG n.
small, leaping, hemipterous insect living on plants. The larvæ are inclosed are frothy liquid called cuckoo spit or frog spit. -- Frog lily (Bot.), the yellow water lily (Nuphar). -- Frog spit (Zoöl.), the frothy exudation of the frog hopper; -- called also frog spittle. See Cuckoo spit, under Cuckoo.…
FUMING a.
Producing fumes, or vapors. Cadet's fuming liquid (Chem.), alkarsin. -- Fuming liquor of Libsvius (Old Chem.), stannic chloride; the chloride of tin, SnCl4, forming a colorless, mobile liquid which fumes in the air. Mixed with water it solidifies to the so-called butter of tin. -- Fuming sulphuric acid. (Chem.) Same…
FUSEL; FUSEL OIL n.
A hot, acrid, oily liquid, accompanying many alcoholic liquors (as potato whisky, corn whisky, etc.), as an undesirable ingredient, and consisting of several of the higher alcohols and compound ethers, but particularly of amyl alcohol; hence, specifically applied to amyl alcohol.
GAS n.
elastic, as oxygen, hydrogen, etc., in distinction from vapors, as steam, which become liquid on a reduction of temperature. In present usage, since all of the supposed permanent gases have been liquified by cold and pressure, the term has resumed nearly its original signification, and is applied to any substance in t…