OPTICAL CROWN

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does optical crown mean? 

• OPTICAL CROWN (noun)
  The noun OPTICAL CROWN has 1 sense:

1. optical glass of low dispersion and low refractive index

  Familiarity information: OPTICAL CROWN used as a noun is very rare.

 Dictionary entry details 

• OPTICAL CROWN (noun)

Sense 1

Meaning:

Optical glass of low dispersion and low refractive index

Classified under:

Nouns denoting substances

Synonyms:

crown glass; optical crown; optical crown glass

Hypernyms ("optical crown" is a kind of...):

optical glass (clear homogeneous glass of known refractive index; used to make lenses)