Main Entry: ¹glass

Pronunciation: \ˈglas, ˈgläs\

Function: noun

Usage: often attributive

Etymology: Middle English glas, from Old English glæs; akin to Old English geolu yellow — more at yellow

Date: before 12th century

1 : any of various amorphous materials formed from a melt by cooling to rigidity without crystallization: as a : a usually transparent or translucent material consisting typically of a mixture of silicates b : a material (as obsidian) produced by fast cooling of magma
2 a : something made of glass: as (1) : tumbler; also : glassware (2) : mirror (3) : barometer (4) : hourglass (5) : backboard 1 b (1) : an optical instrument or device that has one or more lenses and is designed to aid in the viewing of objects not readily seen (2) : field glasses, binoculars —usually used in plural c plural : a device used to correct defects of vision or to protect the eyes that consists typically of a pair of glass or plastic lenses and the frame by which they are held in place —called also eyeglasses, spectacles
3 : the quantity held by a glass container
4 : fiberglass

— glass·ful \ˈglas-ˌfu̇l\ noun

— glass·less \-ləs\ adjective