(cytology) An organelle, near the nucleus in the cytoplasm of most organisms, that controls the organization of its microtubules
(biology) A barrel-shaped microtubule structure found in most animal cells, important in the process of mitosis (nuclear division).
A peculiar rounded body lying near the nucleus of a cell. It is regarded as the dynamic element by means of which the machinery of cell division is organized.
one of two small cylindrical cell organelles composes of nine triplet microtubules, which form the asters during mitosis.
small region of cytoplasm adjacent to the nucleus; contains the centrioles and serves to organize the microtubules
one of two small cylindrical cell organelles composes of 9 triplet microtubules; form the asters during mitosis
In cell biology, the centrosome (Latin centrum 'center' + Greek sōma 'body') (also called cytocenter) is an organelle that serves as the main microtubule organizing center (MTOC) of the animal cell, as well as a regulator of cell-cycle progression. The centrosome provides structure for the cell.
In cell biology a centriole is a cylindrical organelle composed mainly of a protein called tubulin. Centrioles are found in most eukaryotic cells, but are not present in conifers (Pinophyta), flowering plants (angiosperms) and most fungi, and are only present in the male gametes of charophytes, bryophytes, seedless vascular plants, cycads, and Ginkgo.