Definition of ascorbic acid in US English:

ascorbic acid

noun

  • A vitamin found particularly in citrus fruits and green vegetables. It is essential in maintaining healthy connective tissue, and is also thought to act as an antioxidant. Severe deficiency causes scurvy.

    A lactone; chemical formula: C₆H₈O₆

    Also called vitamin C
    • ‘Such experiments have been described in the literature with various nutrients, including ascorbic acid.’
    • ‘However, unlike in animals, the biosynthesis of ascorbic acid in plants is only beginning to be unraveled.’
    • ‘Most animals can synthesize this vitamin in the liver, where glucose is converted to ascorbic acid.’
    • ‘Citrus fruits, vinegar, and vitamins such as ascorbic acid or folic acid do not change the acidity of your stomach or your bloodstream.’
    • ‘The antioxidant ascorbic acid plays an essential role in defending against oxidant attack in the airways.’

Origin

1930s: from a- ‘without’ + medieval Latin scorbutus ‘scurvy’ + -ic.

Pronunciation

ascorbic acid

/əˌskɔrbɪk ˈæsəd//əˌskôrbik ˈasəd/