crown glass
crown glass noun: 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.
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.
crown glass meaning in Tamil
crown glass in Tamil
- கிரௌன் கண்ணாடி, கிறவுன்கண்ணாடி, கிரவுன் கண்ணாடி
Forms of crown glass
| plural | crown glasses |
|---|
Origin of crown glass
So called from a crown-like shape given to it in the process of blowing.
Questions about crown glass
- What does crown glass mean?
- Crown glass means 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.
- What is crown glass in Tamil?
- Crown glass in Tamil is கிரௌன் கண்ணாடி, கிறவுன்கண்ணாடி, கிரவுன் கண்ணாடி. See Crown glass meaning in Tamil.
- What part of speech is crown glass?
- Crown glass is a noun.
- What is the plural of crown glass?
- The plural of crown glass is crown glasses.
Words near crown glass in the dictionary
Source and license
Adapted from Wiktionary: crown glass (page history and authors); crown glass (Tamil Wiktionary) (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.
Last updated:
Cite this entry: “crown glass.” Word.ws, https://word.ws/crown_glass. Based on Wiktionary, CC BY-SA 4.0.