Contractile-vacuole



noun, Cell Biology.
1.
a membrane-enveloped cellular organelle, found in many microorganisms, that periodically expands, filling with water, and then contracts, expelling its contents to the cell exterior: thought to be important in maintaining hydrostatic equilibrium.

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  • Contractility

    [kuh n-trak-tl, -til] /kənˈtræk tl, -tɪl/ adjective 1. capable of or causing contraction. /kənˈtræktaɪl/ adjective 1. having the power to contract or to cause contraction adj. 1706, from French contractile, from Latin contract-, past participle stem of contrahere (see contract (n.)). Related: Contractility. Contractile vacuole is from 1877. contractile con·trac·tile (kən-trāk’təl, -tīl’) adj. Capable of […]

  • Contraction

    [kuh n-trak-shuh n] /kənˈtræk ʃən/ noun 1. an act or instance of . 2. the quality or state of being . 3. a shortened form of a word or group of words, with the omitted letters often replaced in written English by an apostrophe, as e’er for ever, isn’t for is not, dep’t for department. […]



  • Contractional

    [kuh n-trak-shuh n] /kənˈtræk ʃən/ noun 1. an act or instance of . 2. the quality or state of being . 3. a shortened form of a word or group of words, with the omitted letters often replaced in written English by an apostrophe, as e’er for ever, isn’t for is not, dep’t for department. […]

  • Contraction-joint

    noun, Architecture, Civil Engineering. 1. a joint between two parts of a structure, designed to compensate for the contraction to which either part may be subject.



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