/stib"een, -in/ , n. Chem.
1. a colorless, slightly water-soluble, poisonous gas, SbH 3 , usually produced by the reaction of dilute hydrochloric acid with an alloy of antimony and either zinc or magnesium.
2. any derivative of this compound in which the hydrogen atoms are replaced by one or more organic groups. Also called antimony hydride .
[ 1835-45; STIB(IUM) + -INE 2 ; cf. ARSINE, PHOSPHINE ]