trichocyst

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trich·o·cyst

(trik'ō-sist),
One of a number of structures, in the form of minute elongated cysts, arranged radially around the periphery of a protozoan cell and containing fluid that when discharged serves for offense or defense; found in ciliates, such as Paramecium species.
Synonym(s): trichite
[tricho- + G. kystis, bladder]
Farlex Partner Medical Dictionary © Farlex 2012

trichocyst

(trĭk′ə-sĭst′)
n.
An organelle in certain protozoans, especially ciliates, consisting of filamentous fibers that are discharged suddenly.

trich′o·cys′tic adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

trichocyst

(1) Trichilemmal cyst, see there.
(2) An elongated vesicular structure found in ciliate protozoa, which contains toxic substances used for defence.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

trichocyst

a thread-like structure of uncertain function found in some PROTOZOANS, which is ejected from a pit on stimulation.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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