Microfilament Definition

mīkrō-fĭlə-mənt
noun
Any of the minute fibers containing actin that are located throughout the cytoplasm of cells, maintain structural integrity of the cell, and assist with movement of cellular structures.
American Heritage

A very fine (thin) filament.

Wiktionary

Other Word Forms of Microfilament

Noun

Singular:
microfilament
Plural:
microfilaments

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microfilament