• WordNet 3.6
    • n choanocyte any of the flagellated cells in sponges having a collar of cytoplasm around the flagellum; they maintain a flow of water through the body
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Century Dictionary and Cyclopedia
    • n choanocyte One of the collared and flagellated monadiform cells of sponges: so called from their great resemblance to choanoflagellate infusorians. Such cells form layers lining the flagellated endodermal chambers of sponges.
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