vit·​re·​ous | \ ˈvi-trē-əs How to pronounce vitreous (audio) \

Definition of vitreous

 (Entry 1 of 2)

1a : resembling glass (as in color, composition, brittleness, or luster) : glassy vitreous rocks
b : characterized by low porosity and usually translucence due to the presence of a glassy phase vitreous china
2 : of, relating to, derived from, or consisting of glass
3 : of, relating to, or constituting the vitreous humor vitreous surgery



Definition of vitreous (Entry 2 of 2)

Examples of vitreous in a Sentence

Recent Examples on the Web: Adjective The sink is made of durable vitreous china and features an overflow drain. Rachel Klein, Popular Mechanics, 3 May 2022 Cloisonné is defined as a decorative technique that uses thin wire to separate varying shades of vitreous enamel to create a design. Nancy Olson, Forbes, 26 Jan. 2022 Individuals who make their abode in vitreous edifices of patent frangibility are advised to refrain from catapulting petro us projectiles. Richard Lederer, San Diego Union-Tribune, 2 Oct. 2021 The result is a design made up of thick, transparent panes of enamel that reflect light and shadows in a unique, vitreous glow. Carol Besler, Robb Report, 11 Aug. 2021 Finally, in the normally clear fluid that filled the eye itself, a thick gel called the vitreous, Rodriguez could see tiny white specks. Lisa Sanders, New York Times, 16 June 2021 Large reductions were especially notable along Billionaires’ Row in Midtown, where a number of units at the vitreous skyscraper at 157 West 57th Street sold for well under their original purchase price, including one just below Mr. Dell’s duplex. New York Times, 25 Dec. 2020 Very few modern toilets are actually constructed from porcelain, but they are made from vitreous china. Michael Pollick,, 17 Oct. 2020 It’s a ceramic that’s fired at high temps and can be mixed with vitreous (glass) for extra durability. Shanna Shipin, Glamour, 29 Sep. 2020 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vitreous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of vitreous


14th century, in the meaning defined at sense 1a


1869, in the meaning defined above

History and Etymology for vitreous


Middle English, from Latin, from vitrum glass

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The first known use of vitreous was in the 14th century

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Dictionary Entries Near vitreous



vitreous aggregate

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Cite this Entry

“Vitreous.” Dictionary, Merriam-Webster, Accessed 12 Aug. 2022.

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More Definitions for vitreous


vit·​re·​ous | \ ˈvi-trē-əs How to pronounce vitreous (audio) \

Medical Definition of vitreous

 (Entry 1 of 2)

: of, relating to, constituting, or affecting the vitreous body vitreous hemorrhages



Medical Definition of vitreous (Entry 2 of 2)

More from Merriam-Webster on vitreous

Thesaurus: All synonyms and antonyms for vitreous

Nglish: Translation of vitreous for Spanish Speakers


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