Stomodaeum
Pronunciation : Stom`o*d?"um
Part of Speech : n.
Etymology : [NL., from Gr.
Definition : 1. (Anat.)
Defn: A part of the alimentary canal. See under Mesenteron.
2. (Zo?l.)
Defn: The primitive mouth and esophagus of the embryo of annelids and arthropods.
Source : Webster's Unabridged Dictionary, 1913