collar cell collar case • collar cutter · · · Info · Definitions · Synonyms · Characters · · collar cell · · Text Common · · Latin · · Scripts 11 · · Length 3 · · Syllables Definitions · · · (noun) any of the flagellated cells in sponges having a collar of cytoplasm around the flagellum; they maintain a flow of water through the body. Synonyms: choanocyte, collar cell. · · Noun Definition 1 Synonyms · · · choanocyte · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 l latin small letter l U+006C o latin small letter o U+006F r latin small letter r U+0072