Megastome definitions

Megastome

• (n.) One of a group of univalve shells, having a large aperture or mouth.
Found on http://thinkexist.com/dictionary/meaning/megastome/

---

Megastome

Meg'a·stome noun [ Greek me`gas great + sto`ma mouth.] (Zoology) One of a group of univalve shells, having a large aperture or mouth.
Found on http://www.encyclo.co.uk/webster/M/42

---