Definition of archenteron in English:

archenteron

noun

Embryology
  • The rudimentary alimentary cavity of an embryo at the gastrula stage.

    • ‘In the fossils I and J, the archenteron is thick-walled, and in J all of the cells in the embryo, including the ectodermal wall, are conspicuously larger relative to the size of the embryo.’
    • ‘It doesn't seem to do much of anything, except to offer little suggestions to cells migrating into the archenteron.’
    • ‘The mesoderm then lies immediately beneath the ectoderm, with the endoderm lining the roof of the archenteron, the future gut.’
    space, chamber, hollow, hole, pocket, pouch
    View synonyms

Origin

Late 19th century: from Greek arkhē beginning + enteron intestine.

Pronunciation:

archenteron

/ɑːˈkɛntərɒn/