[ 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for microfibril

[ mī′krō-fībrəl, -fĭbrəl ]


An extremely small fibril.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.