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microfibril

[mahy-kroh-fahy-bruh l, -fib-ruh l]
noun Cell Biology.
  1. a microtubule, microfilament, or other fine threadlike structure of a cell.
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Origin of microfibril

First recorded in 1935–40; micro- + fibril
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
microfibril in Medicine

microfibril

(mī′krō-fī′brəl, -fĭb′rəl)
n.
  1. An extremely small fibril.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.