CROWN GLASS

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does crown glass mean? 

• CROWN GLASS (noun)
  The noun CROWN GLASS has 2 senses:

1. a glass blown into a globe which is later flattened and spun to form a disk

2. optical glass of low dispersion and low refractive index

  Familiarity information: CROWN GLASS used as a noun is rare.

 Dictionary entry details 

• CROWN GLASS (noun)

Sense 1

Meaning:

A glass blown into a globe which is later flattened and spun to form a disk

Classified under:

Nouns denoting substances

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

glass (a brittle transparent solid with irregular atomic structure)

Sense 2

Meaning:

Optical glass of low dispersion and low refractive index

Classified under:

Nouns denoting substances

Synonyms:

crown glass; optical crown; optical crown glass

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

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