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词汇 choanocyte
释义

Definition of choanocyte in English:

choanocyte

nounˈkəʊənə(ʊ)sʌɪtˈkōənəˌsītkōˈanəˌsīt
Zoology
  • A flagellated cell with a collar of protoplasm at the base of the flagellum, numbers of which line the internal chambers of sponges.

    〔动〕领细胞,襟细胞

    Example sentencesExamples
    • Particles are caught in the collar part of the choanocyte cells.
    • The anterior cells lost their cilia and migrated in to form the inner cell mass; some of these cells rapidly differentiated into choanocytes, while others remained amoeboid.
    • Sponge cells called choanocytes each project a minuscule filament.
    • Due to the physical structure of the choanocyte chambers and oscular chimneys, water can passively flow through the sponge without the choanocytes actively pumping.
    • Water movement is driven by the beating of flagellae, which are located on specialized cells called choanocytes (collar cells).

Origin

Late 19th century: from Greek khoanē 'funnel' + -cyte.

Definition of choanocyte in US English:

choanocyte

nounˈkōənəˌsītkōˈanəˌsīt
Zoology
  • A flagellated cell with a collar of protoplasm at the base of the flagellum, numbers of which line the internal chambers of sponges.

    〔动〕领细胞,襟细胞

    Example sentencesExamples
    • Due to the physical structure of the choanocyte chambers and oscular chimneys, water can passively flow through the sponge without the choanocytes actively pumping.
    • The anterior cells lost their cilia and migrated in to form the inner cell mass; some of these cells rapidly differentiated into choanocytes, while others remained amoeboid.
    • Sponge cells called choanocytes each project a minuscule filament.
    • Particles are caught in the collar part of the choanocyte cells.
    • Water movement is driven by the beating of flagellae, which are located on specialized cells called choanocytes (collar cells).

Origin

Late 19th century: from Greek khoanē ‘funnel’ + -cyte.

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