vitamin D

Found in Anh - Anh (Wordnet)

Definition Noun : A fat-soluble vitamin that is essential for the normal formation of bones and teeth and for the absorption of calcium and phosphorus from the intestine. It is naturally produced in the skin upon exposure to sunlight and can also be obtained from certain foods and supplements. A deficiency can lead to conditions like rickets in children. Usage "Vitamin D" is used as a non-count...