In chemistry, an antimonite refers to salts of antimony(III), such as NaSb(OH)4 and NaSbO2 (metaantimonite) which can be prepared by reacting alkali with antimony trioxide, Sb2O3. These are formally salts of antimonous acid (antimonious acid), `Sb(OH)3` whose existence in solution is dubious, and attempts to isolate it generally form Sb2O3.xH2O,..... Found on http://en.wikipedia.org/wiki/Antimonite
An'ti·mo·nite` noun 1. (Chemistry) A compound of antimonious acid and a base or basic radical. 2. (Min.) Stibnite. Found on http://www.encyclo.co.uk/webster/A/96