Search Result for "archenteron": 
Wordnet 3.0

NOUN (1)

1. central cavity of the gastrula; becomes the intestinal or digestive cavity; 



The Collaborative International Dictionary of English v.0.48:

Archenteron \Arch`en"ter*on\, n. [Pref. arch- + Gr. ?
   intestine.] (Biol.)
   The primitive enteron or undifferentiated digestive sac of a
   gastrula or other embryo. See Illust. under Invagination.
   [1913 Webster]


WordNet (r) 3.0 (2006):

archenteron
    n 1: central cavity of the gastrula; becomes the intestinal or
         digestive cavity