| 释义 |
pro·to·cephalon
\|prōd.(ˌ)ō+\ noun
(plural protocephala)
Etymology: New Latin, from prot- + cephalon
1. : the part of an insect embryo that consists of the prostomium and the first postoral somite
2. : the primitive arthropod head corresponding to the sensory as distinguished from the feeding portion of the head of higher forms — compare gnathothorax |