quartz

noun

1
: a mineral consisting of silicon dioxide occurring in colorless and transparent or colored hexagonal crystals or in crystalline masses
2
: a quartz crystal that when placed in an electric field oscillates at a constant frequency and is used to control devices which require precise regulation
a quartz watch
quartzose adjective

Examples of quartz in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
New techniques lead to exciting discoveries Over the next few years, Ben Arous developed new techniques to date quartz grains from the oldest layer of sediment in which tools were found while a separate lab verified the results with another technique called luminescent dating. N'dea Yancey-Bragg, USA TODAY, 28 Feb. 2025 Analysis of quartz grains from the layers where the stone tools were recovered revealed that such were deposited some 150,000 years ago. Ross Rosenfeld, Newsweek, 26 Feb. 2025 The roomy eat-in kitchen features quartz countertops that continue as the backsplash, a center island with a cantilevered wooden snack bar, sleek white laminate cabinetry, and a full range of high-end appliances. Emma Reynolds, Robb Report, 25 Feb. 2025 But companies that make stainless steel sinks, laminate countertops, stone countertops and quartz countertops offer cautions. The Washington Post, San Diego Union-Tribune, 22 Feb. 2025 See All Example Sentences for quartz

Word History

Etymology

German Quarz

First Known Use

circa 1631, in the meaning defined at sense 1

Time Traveler
The first known use of quartz was circa 1631

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Cite this Entry

“Quartz.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quartz. Accessed 9 Mar. 2025.

Kids Definition

quartz

noun
: a common mineral consisting of silicon dioxide that is often found in the form of colorless transparent crystals but is sometimes (as in amethysts, agates, and jaspers) brightly colored

Medical Definition

quartz

noun
: a mineral SiO2 consisting of a silica that occurs in colorless and transparent or colored hexagonal crystals and also in crystalline masses

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