microfibril

[ mahy-kroh-fahy-bruh l, -fib-ruh l ]
/ ˌmaɪ kroʊˈfaɪ brəl, -ˈfɪb rəl /

noun Cell Biology.

a microtubule, microfilament, or other fine threadlike structure of a cell.

Origin of microfibril

First recorded in 1935–40; micro- + fibril

Medical definitions for microfibril

microfibril
[ mī′krō-fībrəl, -fĭbrəl ]

n.

An extremely small fibril.