n.
Pronunciation: ˌ m ī -kr ō - ' tü-( ˌ )byül, - ' tyü-
Function: noun
Date: 1961
: 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 \ -by ə -l ə r \ adjective