| a cylindrical organelle, within the cytoplasm of flagellated and ciliated cells, that contains microtubules and forms the base of a flagellum or cilium: identical in internal structure to a centriole. |

| basal body n. A cellular organelle associated with the formation of cilia and flagella and similar to the centriole in structure. Also called basal granule, kinetosome. |
basal body n.
A cellular organelle associated with the formation of cilia and flagella and resembling the centriole in structure. Also called basal granule.