ground glass

1. 1.

   glass that diffuses light due to a rough surface produced by abrasion or etching

   Broaderglass
2. 2.

   particulate glass made by grinding and used as an abrasive

   Broaderglass

Questions about ground glass

What does ground glass mean?

ground glass means "glass that diffuses light due to a rough surface produced by abrasion or etching". That is the primary sense; the word has 2 in total, listed in full on this page.

Is ground glass a common word?

ground glass is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.