microfibril
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mi·cro·fi·bril

noun \ˌmī-krō-ˈfī-brəl, -ˈfi-\

Definition of MICROFIBRIL

: a fine fibril; especially : one of the submicroscopic elongated bundles of cellulose of a plant cell wall
mi·cro·fi·bril·lar \-brə-lər\ adjective

First Known Use of MICROFIBRIL

1938

mi·cro·fi·bril

noun \-ˈfīb-rəl, -ˈfib-\   (Medical Dictionary)

Medical Definition of MICROFIBRIL

: an extremely fine fibril
mi·cro·fi·bril·lar \-rə-lər\ (audio pronunciation) adjective

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