HYDROBRANCHIATA
Hy`dro*bran`chi*a"ta, n. pl. Etym: [NL., fr. Gr. "y`dwr water +
(Zoöl.)
Defn: An extensive artificial division of gastropod mollusks,
including those that breathe by gills, as contrasted with the
Pulmonifera.
— Hy`dro*bran"chi*ate, a.
HYDROBROMATE
Hy`dro*bro"mate, n. (Chem.)
Defn: Same as Hydrobromide.
HYDROBROMIC
Hy`dro*bro"mic, a. Etym: [Hydro-, 2 + bromic.] (Chem.)
Defn: Composed of hydrogen and bromine; as, hydrobromic acid. Hydrobromic acid (Chem.), a colorless, pungent, corrosive gas, HBr, usually collected as a solution in water. It resembles hydrochloric acid, but is weaker and less stable. Called also hydrogen bromide.
HYDROBROMIDE
Hy`dro*bro"mide, n. (Chem.)
Defn: A compound of hydrobromic acid with a base; — distinguished from a bromide, in which only the bromine unites with the base.
HYDROCARBON
Hy`dro*car"bon, n. Etym: [Hydro-, 2 + carbon.] (Chem.)
Defn: A compound containing only hydrogen and carbon, as methane, benzene, etc.; also, by extension, any of their derivatives. Hydrocarbon burner, furnace, stove, a burner, furnace, or stove with which liquid fuel, as petroleum, is used.