protasisOur editors are putting together more complete content — check back in about 20 minutesprotasisprotasis — noun名詞1. The first part of a conditional sentence, often the 'if' clause.1.名詞釋義The first part of a conditional sentence, often the 'if' clause.例句In 'If it rains, the game will be canceled,' 'If it rains' is the protasis.