microfilamentWiktionary 原文/ˈmaɪkrəʊˌfɪləmənt/构词拆解micromicro-前缀filamentfilament词干micro-(diminutive) Very small. · (metric units) One millionth.词源说明From micro- + filament.释义名词noun1A thin filament made of the protein actin and found in cells; part of the cytoskeleton.