noun (plural protases) see: thin Date: circa 1568 the introductory part of a play or narrative poem, the subordinate clause of a conditional sentence, protatic adjective
PROTASIS
Meaning of PROTASIS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012