ANTILYSIN Meaning of ANTILYSIN in English ˈ ̷ ̷(ˌ) ̷ ̷|- nounEtymology: anti- (I) + lysin : a substance antagonistic to a lysin and serving to protect the cells from the attacks of the lysin Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012