One of two small cylindrical cell organelles composes of 9 triplet microtubules

• Form the asters during mitosis

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
centriole \centriole\ n. (Biol.) one of two small cylindrical cell organelles composes of nine triplet microtubules, which form the asters during mitosis.

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1896, from German centriol (1895), from Modern Latin centriolum , diminutive of centrum (see center (n.)).

WordNet Word definitions in WordNet
n. one of two small cylindrical cell organelles composes of 9 triplet microtubules; form the asters during mitosis

Wiktionary Word definitions in Wiktionary
n. (context biology English) A barrel-shaped microtubule structure found in most animal cells, important in the process of mitosis (nuclear division).

Wikipedia Word definitions in Wikipedia
In cell biology a centriole is a cylindrical cell structure composed mainly of a protein called tubulin that is found in most eukaryotic cells . An associated pair of centrioles, surrounded by a shapeless mass of dense material, called the pericentriolar ...