cham·o·site \ˈshaməˌzīt\noun orcham·oi·site\-m(w)əˌz-\ (-s) Etymology: French, from Chamoson, Chamoison, Valais canton, Switzerland, its locality + French -ite : a mineral consisting of a greenish gray or black silicate (sp. gr. 3-3.4) • cham·o·sit·ic\| ̷ ̷ ̷ ̷|zid.ik\adjective