noun
centriole
A cylindrical organelle near the nucleus in animal cells, involved in cell division.
中心小体は細胞分裂の際に重要な役割を果たす。
Centrioles play an important role during cell division.
中心体 (centrosome) is the larger structure that contains a pair of centrioles (中心小体).
From 中心 (center) + 小体 (small body), a calque of the English 'centriole'.