Tannin is a yellow or brown chemical that is found in plants such as tea. It is used in the process of making leather and in dyeing.
N-UNCOUNT
Tannin is a yellow or brown chemical that is found in plants such as tea. It is used in the process of making leather and in dyeing.
N-UNCOUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012