ground_glass has definitions from the field of chemistry
1
[ noun ] (chemistry) glass that diffuses light due to a rough surface produced by abrasion or etching

Used in print

(Dell Shannon, The Ace of Spades....)

`` Well , that 's your business , Mr._Skyros '' , said Angie , and his dreamy eyes moved past Mr._Skyros ' shoulder to gaze vaguely out the ground_glass window .

Related terms

glass

2
[ noun ] (chemistry) particulate glass made by grinding and used as an abrasive

Related terms

glass

*