noun
A person who follows a strict plant-based diet and lifestyle, avoiding all animal products. Often used in formal or explanatory contexts; the loanword ヴィーガン is more common in casual conversation.
See also: ヴィーガン
彼女は絶対菜食主義者で、革製品も使わない。
She is a vegan and doesn't use leather products either.
絶対菜食主義者向けのレストランが増えている。
Restaurants catering to vegans are increasing.
Compound of 絶対 (absolute) + 菜食主義者 (vegetarian), literally 'absolute vegetarian'. The term was coined to distinguish vegans from vegetarians.