'centriole' definitions:

Definition of 'centriole'

From: WordNet
noun
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

Definition of 'centriole'

From: GCIDE
  • centriole \centriole\ n. (Biol.) one of two small cylindrical cell organelles composes of nine triplet microtubules, which form the asters during mitosis. [WordNet 1.5]