ˈperə.ˌtrēm noun
( -s )
Etymology: New Latin peritrema, from peri- + -trema
1. : a rounded plate that surrounds the spiracles in some insects
2. : the edge of the aperture of a shell
ˈperə.ˌtrēm noun
( -s )
Etymology: New Latin peritrema, from peri- + -trema
1. : a rounded plate that surrounds the spiracles in some insects
2. : the edge of the aperture of a shell
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012