| 释义 | 
		-tre·ma \.ˈtrēmə\ noun combining form Etymology: New Latin -tremat-, -trema, from Greek trēmat-, trēma hole — more at throw 1. plural -tremas \-məz\ or -trema·ta \-məd.ə, -mətə\  : hole : orifice : opening  < helicotrema > 2.  : creature having (such) an opening — in generic names  < Eurytrema > |