- vegan⇄adj. strictly vegetarian.
Ex. It is difficult for a vegan diet not to result in deficiencies (J. G. Sutherland). - vegan⇄noun a strict vegetarian.
Ex. The true ... vegan excludes all animal protein from his diet, and he may even forego articles of clothing and household equipment of animal origin (New Scientist). - vegan⇄vegan, noun, adjective.
(British.)