optical glass vs optical crown glass

optical glass and optical crown glass both are nouns.

Word	Noun	Adjective	Verb	Adverb
optical glass	Yes	No	No	No
optical crown glass	Yes	No	No	No

As nouns, optical crown glass is a hyponym of optical glass; that is, optical 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
optical crown glass: optical glass of low dispersion and low refractive index

Other hyponyms of optical glass include crown glass, optical crown, flint glass, optical flint.

optical glass (noun)	optical crown glass (noun)
clear homogeneous glass of known refractive index; used to make lenses	optical glass of low dispersion and low refractive index

optical glass vs optical crown glass

optical glass and optical crown glass both are nouns.

Words related to "optical glass"

Words related to "optical crown glass"