1. A small, dense region of cytoplasm near the nucleus of a cell, containing centrioles and serving as the main microtubule-organizing center during cell division.
Usage: biology; cell biology

Examples

• The centrosome duplicates during the cell cycle to help organize spindle fibers.
• In animal cells, the centrosome plays a crucial role in organizing the cytoskeleton.
• During mitosis, the two centrosomes move to opposite poles of the cell.
• The centrosome contains a pair of centrioles arranged at right angles to each other.
• Plant cells typically lack a centrosome, yet they still organize microtubules effectively.
• Centrosome dysfunction has been linked to certain types of cancer.
• Under the electron microscope, the centrosome appears as a dense, granular structure.