prostomium

English

Etymology

From Ancient Greek, meaning "before the mouth".

Noun

prostomium (plural prostomia)

1. (zoology) The portion of the head of an annelid situated in front of the mouth.

Related terms

• prostomial

References

• “prostomium”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.