VITAMIN

vitamin

(noun) any of a group of organic substances essential in small quantities to normal metabolism

Source: WordNet® 3.1

Etymology

Noun

vitamin (plural vitamins)

Any of a specific group of organic compounds essential in small quantities for healthy human growth, metabolism, development, and body function; found in minute amounts in plant and animal foods or sometimes produced synthetically; deficiencies of specific vitamins produce specific disorders.

Hyponyms

• See also vitamin

Source: Wiktionary