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.’
    • ‘The mesoderm then lies immediately beneath the ectoderm, with the endoderm lining the roof of the archenteron, the future gut.’
    • ‘It doesn't seem to do much of anything, except to offer little suggestions to cells migrating into the archenteron.’
    space, chamber, hollow, hole, pocket, pouch
    View synonyms

Origin

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

Pronunciation

archenteron

/ɑːˈkɛntərɒn/