por·trai·ture
noun/ˈpɔːtrətʃə(r)/
/ˈpɔːrtrətʃər/
[uncountable]- the art of making portraits; the portraits that are made
画像技法；人像摄影法；肖像；画像；照片 Word Originlate Middle English: from Old French, from portrait, past participle (used as a noun) of Old French portraire ‘portray’.