crown glasses
crown glasses is the plural of crown glass.
Meaning of crown glass
Noun
crown glass (usually uncountable, plural crown glasses)
- An early type of window glass made by blowing glass into a hollow globe (crown) and then flattening it on a punty, reheating and spinning out into a flat disk by centrifugal force.
- A variety of glass used in lenses and other optical components due to its low refractive index and dispersion. Originally crown glass was made from alkali-lime silicates with approximately 10% potassium oxide, but similar properties may be attained with other recipes.
- The convex half of an achromatic lens is composed of crown glass.
Questions about crown glasses
- What is crown glasses the plural of?
- Crown glasses is the plural of crown glass.
Words near crown glasses in the dictionary
Source and license
Adapted from Wiktionary: crown glasses (page history and authors); crown glass (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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Cite this entry: “crown glasses.” Word.ws, https://word.ws/crown_glasses. Based on Wiktionary, CC BY-SA 4.0.