GL'ASS, noun [Latin glastum; glesid, blueness. Greenness is usually named from vegetation or growing, as Latin viridis, from vireo.]

1. A hard, brittle, transparent, factitious substance, formed by fusing sand with fixed alkalies.

In chimistry, a substance or mixture, earthy, saline or metallic, brought by fusion to the state of a hard, brittle, transparent mass, whose fracture is conchoidal.

2. A glass vessel of any kind; as a drinking glass

3. A mirror; a looking-glass.

4. A vessel to be filled with sand for measuring time; as an hour-glass.

5. The destined time of man's life. His glass is run.

6. The quantity of liquor that a glass vessel contains. Drink a glass of wine with me.

7. A vessel that shows the weight of the air.

8. A perspective glass; as an optic glass

9. The time which a glass runs, or in which it is exhausted of sand. The seamen's watch-glass is half an hour. We say, a ship fought three glasses.

10. Glasses, in the plural, spectacles.

GL'ASS, adjective Made of glass; vitreous; as a glass bottle.

GL'ASS, verb transitive To see as in a glass [Not used.]

1. To case in glass [Little used.]

2. To cover with glass; to glaze.

[In the latter sense, glaze is generally used.]