centriole

centriole

[sen-tree-ohl]
noun Cell Biology.
a small, cylindrical cell organelle, seen near the nucleus in the cytoplasm of most eukaryotic cells, that divides in perpendicular fashion during mitosis, the new pair of centrioles moving ahead of the spindle to opposite poles of the cell as the cell divides: identical in internal structure to a basal body.

Origin:
1895–1900; centri- + -ole1

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World English Dictionary
centriole (ˈsɛntrɪˌəʊl)
 
n
either of two rodlike bodies in most animal cells that form the poles of the spindle during mitosis
 
[C19: from New Latin centriolum, diminutive of Latin centrumcentre]

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Etymonline
Word Origin & History

centriole
1896, from Ger. centriol (1895), from Mod.L. centriolum, dim. of centrum (see center).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

centriole cen·tri·ole (sěn'trē-ōl')
n.
One of two cylindrical cellular structures composed of nine triplet microtubules and forming the mitotic astrospheres.

The American Heritage® Stedman's Medical Dictionary
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American Heritage
Science Dictionary
centriole  [%PREMIUM_LINK%]     (sěn'trē-ōl')  Pronunciation Key 
Either of a pair of cylinder-shaped bodies found in the centrosome of most eukaryotic organisms other than plants. During cell division (both mitosis and meiosis), the centrioles move apart to help form the spindle, which then distributes the chromosomes in the dividing cell. See more at cell, meiosis, mitosis.

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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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