optical glass
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English[edit]
Etymology[edit]
optical + glass from being the type of glass used for optics
Noun[edit]
optical glass (countable and uncountable, plural optical glasses)
- A class of glass used to create optical lenses, such as that for spectacles or spyglasses
Hyponyms[edit]
- crown glass
- flint glass
- natural glass (optometry) ("glass" (not plastic) lens glass for eyeglasses)
See also[edit]
- organic glass (plastic lens plastics)