microtubule
A component of the cytoskeleton in eukaryotic cells; used in cell biology contexts.
微小管は細胞骨格の一部である。
Microtubules are part of the cytoskeleton.
Compound of 微小 (bishō, 'minute, microscopic') and 管 (kan, 'tube, pipe'), a calque of English 'microtubule'.