English edit

 
English Wikipedia has an article on:
Wikipedia

Etymology edit

vitamin +‎ D (4th letter). From being the fourth vitamin discovered. Coined in 1922 by Elmer McCollum, who discovered the vitamin.

Noun edit

vitamin D (uncountable)

  1. (biochemistry) 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.
  2. (humorous, slang) dick (sex with a man)

Alternative forms edit

Hypernyms edit

Coordinate terms edit

Derived terms edit

Translations edit