The Collaborative International Dictionary
Procephalic lobe
Procephalic \Pro`ce*phal"ic\, a. [Pref. pro- + cephalic.] (Zo["o]l.) Pertaining to, or forming, the front of the head.
Procephalic lobe (Zo["o]l.), that part of the head of an invertebrate animal which is in front of the mouth.