often attributive
1
: any of various amorphous materials formed from a melt by cooling to rigidity without crystallization: such as
a
: a usually transparent or translucent material consisting typically of a mixture of silicates
b
: a material (such as obsidian) produced by fast cooling of magma
2
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
glasses 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
5
: crystal meth
specifically
: a pure form of crystal meth
glassed; glassing; glasses
1
a
: to provide with glass : glaze sense 1
b
: to enclose, case, or wall with glass
the sunroom was glassed in
2
: to make glassy
3
a
: reflect
b
: to see mirrored
4
: to look at through an optical instrument (such as a pair of binoculars)
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Merriam-Webster unabridged
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