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
Examples of quartz in a Sentence
Recent Examples on the Web
My facial, personalized for my individual skin as well as for pregnancy, incorporated all the bells and whistles (gua sha, quartz roller, warm and cold stones) and left my complexion looking noticeably improved.
—
Claudia Fisher, Travel + Leisure, 13 Nov. 2025
The first wristwatch with a commercial quartz movement was introduced by Seiko in 1969 in Tokyo, meaning this brand stands among the icons.
—Barry Samaha, Glamour, 12 Nov. 2025
Tag Heuer, for instance, has worked with it to develop a solar quartz movement.
—Jennifer Weil, Footwear News, 12 Nov. 2025
This one comes with all your usual modern touches, including an in-unit washer-dryer combo and an open-concept kitchen with quartz countertops and island.
—Matthew Sedacca, Curbed, 10 Nov. 2025
See All Example Sentences for quartz
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Claudia Fisher, Travel + Leisure, 13 Nov. 2025
The first wristwatch with a commercial quartz movement was introduced by Seiko in 1969 in Tokyo, meaning this brand stands among the icons.
—Barry Samaha, Glamour, 12 Nov. 2025
Tag Heuer, for instance, has worked with it to develop a solar quartz movement.
—Jennifer Weil, Footwear News, 12 Nov. 2025
This one comes with all your usual modern touches, including an in-unit washer-dryer combo and an open-concept kitchen with quartz countertops and island.
—Matthew Sedacca, Curbed, 10 Nov. 2025
See All Example Sentences for quartz
Cite this Entry
“Quartz.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quartz. Accessed 15 Nov. 2025.
Copy CitationKids 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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