HyperDic: glass_wool

English > 1 sense of the expression *glass wool*:
NOUN	substance	glass wool	glass fibers spun and massed into bundles resembling wool

English > *glass wool*: 1 sense > noun 1, substance
Meaning	glass fibers spun and massed into bundles resembling wool.
Broader	filter	device that removes something from whatever passes through it
Broader	insulator, dielectric, nonconductor	A material such as glass or porcelain with negligible electrical or thermal conductivity
Spanish	fibra de vidrio, lana de vidrio