noun see: gnosis Date: circa 1885 a branch of pharmacology dealing with medicinal substances of biological origin and especially medicinal substances obtained from plants, pharmacognostic or pharmacognostical adjective
PHARMACOGNOSY
Meaning of PHARMACOGNOSY in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012