Glass1, n.
[A-S. glās, Ger., D., Dan., Sw., & Icel. glas, Icel. also glēr, Dan. glar; O. H. Ger. glas, also amber, A-S. glære, Lat. glesum, glesum, glæsum.]
- A hard, brittle, transparent substance, formed by fusing sand with fixed alkalies.
- (Chem.) A substance or mixture, earthy, saline, or metallic, brought by fusion to the state of a hard, brittle, transparent mass, whose fracture is conchoidal. Aikin.
- Any thing made of glass; especially, (a.) A looking-glass; a mirror. (b.) A glass filled with running sand for measuring time; and hence the time in which a glass is exhausted of its sand.
She would not live The running of one glass. Shak. (c.) A drinking-glass; a tumbler. (d.) An optical glass; a lens; a spy-glass; — in the plural, spectacles; as, a pair of glasses. (e.) A weather-glass; a barometer.