HORSE n.
ice for drawing loaded wheelbarrows up an inclined plane by horse power. -- Horse sense, strong common sense. [Colloq. U.S.] -- Horse soldier, a cavalryman. -- Horse sponge (Zoöl.), a large, coarse, commercial sponge (Spongia equina). -- Horse stinger (Zoöl.), a large dragon fly. [Prov. Eng.] -- Horse sugar (Bot.),…
HUMMING n.
A sound like that made by bees; a low, murmuring sound; a hum. Hummingale, lively or strong ale. Dryden. -- Humming bird (Zoöl.), any bird of the family Trochilidæ, of which over one hundred genera are known, including about four hundred species. They are found only in America and are most abundant in the tropics. The…
HYDRAULIC a.
one which contains some clay, and which yields a quicklime that will set, or form a firm, strong mass, under water. -- Hydraulic main (Gas Works), a horizontal pipe containing water at the bottom into which the ends of the pipes from the retorts dip, for passing the gas through water in order to remove ammonia. -- Hy…
HYDROFLUORIC a.
m.), a colorless, mobile, volatile liquid, HF, very corrosive in its action, and having a strong, pungent, suffocating odor. It is produced by the action of sulphuric acid on fluorite, and is usually collected as a solution in water. It attacks all silicates, as glass or porcelain, is the agent employed in etching glas…