vitamin D
Meaning
- (uncountable) Any of a number of fat-soluble vitamins, required for normal bone development and that prevents rickets; can be manufactured in the skin on exposure to sunlight.
- (humorous, slang, uncountable, vulgar) A dick (“penis”), especially in a sexual context.
Synonyms
Translations
Etymology
From vitamin + D (“4th letter”). From being the fourth vitamin discovered. Coined in 1922 by Elmer McCollum, who discovered the vitamin.
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