optical glass en · NOUN
Etymology
From optical + glass from being the type of glass used for optics.
Meanings
- (countable, uncountable) A class of glass used to create optical lenses, such as that for spectacles or spyglasses
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| optical glasses | Number=Plur | lexicographic |
Hyponyms
flint glass · natural glass lens glass for eyeglasses) · crown glass