microtubule
mi·cro·tu·bule
noun \ˌmī-krō-ˈtü-(ˌ)byül, -ˈtyü-\Definition of MICROTUBULE
: any of the minute tubules in eukaryotic cytoplasm that are composed of the protein tubulin and form an important component of the cytoskeleton, mitotic spindle, cilia, and flagella
— mi·cro·tu·bu·lar \-byə-lər\ adjective
First Known Use of MICROTUBULE
1961
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