Definify.com

Webster 1913 Edition

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Noun.

[NL., from Gr. [GREEK], [GREEK], mouth + [GREEK] to divide.]

(Anat.)

A part of the alimentary canal. See under

(Zool.)

The primitive mouth and esophagus of the embryo of annelids and arthropods.

See also: stomodæum

stomodaeum ‎(plural stomodaea)