Meaning & use

vitamin

noun·Everyday

A natural substance found in food that the body needs in small amounts to stay healthy.

See it in a sentence

Oranges are a good source of vitamin C, which supports the immune system.

The doctor suggested she take a vitamin supplement during the winter months.

A note on using this word

Vitamins are usually identified by a letter, such as vitamin A or vitamin D, each linked to a different bodily function.

Words with a similar meaning

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