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 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, "The Real Estate Collapse of 2020," 25 Dec. 2020 Very few modern toilets are actually constructed from porcelain, but they are made from vitreous china. Michael Pollick,, "The best American Standard toilet," 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, "The 25 Best Coffee Mugs to Live Your Most Caffeinated Life in 2020," 29 Sep. 2020 This sink has a 33.5-inch pedestal and it is manufactured using vitreous china for durability and luster. Allen Foster,, "The best bathroom pedestal sink," 22 Sep. 2020 Ironstone is a vitreous type of ceramic fired at high temperatures to strengthen it. oregonlive, "Could George and Martha Washington have owned this platter? Today’s Collectibles," 2 June 2020 Closings at 53 West 53, the supertall, vitreous building between Fifth Avenue and Avenue of the Americas, began earlier this year, with prices starting at around $3 million for a one-bedroom. Vivian Marino, New York Times, "More High-Price Closings at New Condo Tower Next to MoMA," 28 Feb. 2020 The finest spinels display a bright, vitreous luster. Kathleen Beckett, New York Times, "Spinel: ‘The Great Impostor’ No More," 10 Feb. 2020 And the microneedles were nearly invisible since HA is largely transparent—almost exactly as transparent as the cornea and vitreous fluid in the eye, in fact. Kiona N. Smith, Ars Technica, "Delivering drugs directly to the eye using microneedles that dissolve," 9 Nov. 2018

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.

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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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Time Traveler for vitreous

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

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Last Updated

14 Jan 2021

Cite this Entry

“Vitreous.” Dictionary, Merriam-Webster, Accessed 24 Feb. 2021.

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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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