Definition of: calcine

(kal′sīn, -sin) v. ·cined, ·cin·ing v.t.
1. To expel volatile matter (as carbon dioxide or water) from (a substance) by heat, for the purpose of rendering it friable: to calcine limestone.
2. To reduce to a calx, as copper ore, by subjecting to heat; roast.
—v.i.
3. To become changed by the action of dry heat into a friable powder. Also cal′cin·ize. [<F calciner <Med. L calcinare <L calx lime]
—cal′cined adjective
—cal·ci·na·tion (kal′sə·nā′shən) noun