The Collaborative International Dictionary of English v.0.48:
vitamin C \vitamin C\ n. a vitamin that prevents scurvy. Also called ascorbic acid. Syn: ascorbic acid. [WordNet 1.5]WordNet (r) 3.0 (2006):
vitamin C n 1: a vitamin found in fresh fruits (especially citrus fruits) and vegetables; prevents scurvy [syn: vitamin C, C, ascorbic acid]