ˌ ̷ ̷ ̷ ̷ˈsefəˌlän noun
Etymology: New Latin, from archi- + cephalon
: the primitive head region in insects consisting of the preoral segments and probably equivalent to the prostomium of annelid worms
ˌ ̷ ̷ ̷ ̷ˈsefəˌlän noun
Etymology: New Latin, from archi- + cephalon
: the primitive head region in insects consisting of the preoral segments and probably equivalent to the prostomium of annelid worms
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012