— microfilamentous /muy'kroh fil'euh men"teuhs/ , adj.
/muy'kreuh fil"euh meuhnt/ , n. Cell Biol.
a minute, narrow tubelike cell structure composed of a protein similar to actin, occurring singly and in bundles, involved in cytoplasmic movement and changes in cell shape.
[ 1960-65; MICRO- + FILAMENT ]