Found 2 items, similar to prostomia.
English → English (WordNet) Definition: prostomia prostomia See prostomium
English → English (gcide) Definition: Prostomia Prostomium \Pro*sto"mi*um\, n.; pl. Prostomia. [NL., fr. Gr. ? before + ?, ?, mouth.] (Zo["o]l.) That portion of the head of an annelid situated in front of the mouth. -- Pro*sto"mi*al, a. [1913 Webster]