Fundamental definition of the word vegan :

Someone or Something or some way that does not exploit animals.

Applied définitions ofvegan :

• A vegan is someone who seeks, as much as practicable, to live without exploiting animals.
• To be vegan is to seek to dispense with all products made by exploiting animal. To dispense with means here to discard in a context of a progress or emancipation.
• A vegan product is a product of which ingredients, research, development and production are done without exploiting animals.

History

The word vegan was created and adopted in 1944 among founders of the Vegan Society, using the three first and last two letters of the word "vegetarian". The word was proposed by the founder Donald Watson (1910-2005).