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trichocyst

[ trik-uh-sist ]

noun

, Zoology.
  1. an organ of offense and defense embedded in the outer cytoplasm of certain protozoans, consisting of a small elongated sac containing a fine, hairlike filament capable of being ejected.

trichocyst

/ ˈtrɪkəˌsɪst /

noun

  1. any of various cavities on the surface of some ciliate protozoans, each containing a sensory thread that can be ejected

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Derived Forms

  • ˌtrichoˈcystic, adjective

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Other Words From

  • tricho·cystic adjective

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Word History and Origins

Origin of trichocyst1

First recorded in 1850–55; tricho- + cyst

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