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  1. nicotinic acid

    • IPA[nɪkəˈtɪnɪk]

    英式

    • n.
      a vitamin of the B complex which is widely distributed in foods such as milk, wheat germ, and meat, and can be synthesized in the body from tryptophan. Its deficiency causes pellagra.
    • noun: nicotinic acid

    • 更多解釋
    • IPA[ˌnikəˌtēnik ˈasəd]

    美式

    • n.
      a vitamin of the B complex which is widely distributed in foods such as milk, wheat germ, and ...

    Oxford American Dictionary