optical glass vs crown glass
crown glass vs optical glassoptical glass and crown glass both are nouns.
| Word | Noun | Adjective | Verb | Adverb |
|---|---|---|---|---|
| optical glass | Yes | No | No | No |
| crown glass | Yes | No | No | No |
As nouns,
crown glass is a hyponym of
optical glass; that is, crown glass is a
word with a more specific, narrower meaning than
optical glass:
- optical glass: clear homogeneous glass of known refractive index; used to make lenses
- crown glass: optical glass of low dispersion and low refractive index
Other hyponyms of optical glass include
optical crown, optical crown glass, flint glass, optical flint.
| optical glass (noun) | crown glass (noun) |
|---|---|
| clear homogeneous glass of known refractive index; used to make lenses | optical glass of low dispersion and low refractive index |
| a glass blown into a globe which is later flattened and spun to form a disk |
Words related to "optical glass"
Words related to "crown glass"
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