a slender thread-like object or fibre, especially one found in animal or plant structures
(尤指动植物构造中的)丝
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each myosin filament is usually surrounded by 12 actin filaments .每根肌球蛋白丝通常都围有12根肌动蛋白丝。
a conducting wire or thread with a high melting point, forming part of an electric bulb or thermionic valve and heated or made incandescent by an electric current
(电灯泡的)灯丝;(热离子管的)丝极。
【植】 (支承花药的雄蕊的)花丝。
【天文】 (太阳色球层或日冕中的)暗条。
"late 16th cent.: from French, or from modern Latin