Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. One of two cylindrical cellular structures that are composed of nine triplet microtubules and form the asters during mitosis.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A barrel shaped microtubule structure found in most animal cells, important in the process of mitosis (nuclear division).

from the GNU version of the Collaborative International Dictionary of English

  • n. one of two small cylindrical cell organelles composes of nine triplet microtubules, which form the asters during mitosis.

from The Century Dictionary and Cyclopedia

  • n. In cytology, a minute granule in the center of the astrosphere of the dividing-cell.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. one of a pair of small cylindrical cell organelles near the nucleus in animal cells; composed of nine triplet microtubules and form the asters during mitosis

Etymologies

New Latin centriolum, diminutive of Latin centrum, center; see center.
(American Heritage® Dictionary of the English Language, Fourth Edition)

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