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单词 microvillus
释义

Definition of microvillus in English:

microvillus

nounPlural microvilli ˌmʌɪkrəʊˈvɪləsˌmaɪkroʊˈvɪləs
Biology
  • Each of a large number of minute projections from the surface of some cells.

    〔生〕(细胞表面)微小突起物;微绒毛

    Example sentencesExamples
    • In contrast to the model of a rigid microvillus, recent micropipette measurements indicate that neutrophil microvilli might be elastic enough to extend in response to forces that neutrophils might encounter in vivo.
    • These cells are sparse but are easily distinguished from other epithelial cells by the presence of a tuft of blunt, squat microvilli on the cell surface.
    • The ratio of the surface area of a microvillus to the area of the unit cell can be determined numerically.
    • The diagnosis was confirmed by the ultrastructural demonstration of large desmosomes and long microvilli at the cell surface.
    • The luminal surface of the epithelial cells contained few irregular cytoplasmic projections, but cilia or microvilli were absent.

Derivatives

  • microvillar

  • adjective ˌmʌɪkrəʊˈvɪləˌmaɪkroʊˈvɪlər
    Biology
    • (of a cell surface) having a large number of minute projections.

      the microvillar plasma membrane
      Example sentencesExamples
      • As the core filaments polymerize, other microvillar proteins (villin, fimbrin, etc.) are mobilized from the cytoplasm and inserted.
      • The underlying epithelial cells show irregular light nuclei containing discrete nucleoli and a microvillar layer that is presumably secreting the basal layer of cuticle (arrow).
      • Equally a mystery are the mechanisms responsible for the construction and destruction of the microvillar membrane with changes in microvillus length.

Definition of microvillus in US English:

microvillus

nounˌmīkrōˈviləsˌmaɪkroʊˈvɪləs
Biology
  • Each of a large number of minute projections from the surface of some cells.

    〔生〕(细胞表面)微小突起物;微绒毛

    Example sentencesExamples
    • In contrast to the model of a rigid microvillus, recent micropipette measurements indicate that neutrophil microvilli might be elastic enough to extend in response to forces that neutrophils might encounter in vivo.
    • The luminal surface of the epithelial cells contained few irregular cytoplasmic projections, but cilia or microvilli were absent.
    • The diagnosis was confirmed by the ultrastructural demonstration of large desmosomes and long microvilli at the cell surface.
    • These cells are sparse but are easily distinguished from other epithelial cells by the presence of a tuft of blunt, squat microvilli on the cell surface.
    • The ratio of the surface area of a microvillus to the area of the unit cell can be determined numerically.
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更新时间:2024/12/27 4:13:28