单词	choanocyte
释义	choanocyte /ˈkəʊənə(ʊ)sʌɪt / noun Zoology A flagellated cell with a collar of protoplasm at the base of the flagellum, numbers of which line the internal chambers of sponges.Water movement is driven by the beating of flagellae, which are located on specialized cells called choanocytes (collar cells).... Sponge cells called choanocytes each project a minuscule filament. Particles are caught in the collar part of the choanocyte cells. Origin Late 19th century: from Greek khoanē 'funnel' + -cyte.
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