词根词缀：ptomato-, ptomat-, pto-, -ptosia, -ptosis, -ptoma, -ptot-

【来源及含义】Greek: fall, a falling down of an organ; drooping, sagging; corpse

【同源单词】apoptosis, asymptomatic, asymptote, asymptotic, asymptotical, blepharoptosis

词根词缀：syn-, sy-, sym-, syl-, sys-

【来源及含义】Greek: with, together with; also by extension: united; same, similar; at the same time

【相关词根词缀】 Inter-related cross references, directly or indirectly, involving word units dealing with "equal, identical, same, similar": auto-; emul-; equ-, equi-; homeo-; homo-; iso-; pari-; peer; rhomb-; tauto-.

【同源单词】acrocephalopolysyndactyly, acrocephalosyndactylia, acrocephalosyndactyly, acrosyndesis, allosynapsis, antagonistic symbiosis