vitamin

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vitamin biotin B vitamin calciferol cholecalciferol folic acid menadione retinal[2,noun] riboflavin sunshine vitamin thiamine tretinoin vitamin A vitamin A acid vitamin A aldehyde vitamin A1 vitamin A palmitate vitamin A2 vitamin B vitamin Bc vitamin B complex vitamin B1 vitamin B17 vitamin B6 vitamin BT vitamin B3 vitamin B12 vitamin B2 vitamin C vitamin D vitamin D milk vitamin D3 vitamin D2 vitamin E vitamin G vitamin H vitamin K vitamin K1 vitamin K3 vitamin K2 vitamin M vitamin P vitamin PP

Main Entry: vi·ta·min
Variant(s): also vi·ta·mine /vt--mn, British also vit-/
Function: noun
: any of various organic substances that are essential in minute quantities to the nutrition of most animals and some plants, act especially as coenzymes and precursors of coenzymes in the regulation of metabolic processes but do not provide energy or serve as building units, and are present in natural foodstuffs or are sometimes produced within the body