Real Dictionary

ascorbic acid
uncountable noun: Ascorbic acid is another name for vitamin C.

ascorbic acid in American English
a colorless, crystalline, water-soluble vitamin, C6H8O6, found in many foods, esp. citrus fruits, vegetables, and rose hips, and also made synthetically; vitamin C: it is required for proper nutrition and metabolism, and a deficiency produces scurvy
noun: a white, crystalline, water-soluble vitamin, C6H8O6, occurring naturally in citrus fruits, green vegetables, etc., and often produced synthetically, essential for normal metabolism: used in the prevention and treatment of scurvy, and in wound-healing and

ascorbic acid in British English
white crystalline vitamin present in plants, esp citrus fruits, tomatoes, and green vegetables
noun: a white crystalline vitamin present in plants, esp citrus fruits, tomatoes, and green vegetables. A deficiency in the diet of humans leads to scurvy. Formula: C6 H8 O6

ascorbic acid in the Pharmaceutical Industry
noun: Ascorbic acid is a white, crystalline vitamin, also called vitamin C.