Anglais ⇄ Allemand Français Langues chinoises Russe

protocephalon [ˌprəutəu'sefələ] n contraintes
Gruzovik, entom.	протоцефалон (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)
paléont.	протоцефалон