Definition of megavitamin in English:

megavitamin

noun

  • A large or concentrated dose of a vitamin. Frequently attributive, designating forms of therapy based on the taking of large doses of vitamins.

Origin

1960s; earliest use found in Linus Pauling (1901–1994), chemist and biochemist. From mega- + vitamin.

Pronunciation

megavitamin

/ˌmɛɡəˈvɪtəmɪn//ˌmɛɡəˈvʌɪtəmɪn/