en·ter·o·coele noun oren·ter·o·coel\ˈentərōˌsēl\ (-s) Etymology:enter- + -coele, -coel : a coelom that originates by outgrowth from the archenteron (as in the echinoderms) — compare schizocoel • en·ter·o·coe·lic\| ̷ ̷ ̷ ̷ ̷ ̷|sēlik\adjective • en·ter·o·coe·lous\-ləs\adjective