单词 nicotinic 释义 nicotinic, a. Chem. and Biochem.|nktnk|[f. nicotine + -ic.]1. nicotinic acid [tr. G. nicotinsure (H. Weidel 1873, in Ann. d. Chem. und Pharm. CLXV. 330)]: a white crystalline heterocyclic acid, (C5H4N)COOH, which is widely distributed...