: a rock composed of the finer kinds of volcanic detritus usually fused together by heat
Examples of tuff in a Sentence
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Based on radiometric dating of zircon grains preserved in tuff layers interbedded between the mudstone and amber beds, the entire sedimentary succession formed around 116 and 114 million years ago.
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David Bressan, Forbes.com, 27 May 2025
Other rare finds at the site include a small bronze panther, a mosaic glass spindle whorl, and a tuff — or rock — votive, according to the release.
—Lauren Liebhaber, Miami Herald, 28 Apr. 2025
The structure is made of opus reticulatum—bricks laid in a diamond pattern—and contains a volcanic rock called tuff: details suggesting high status individuals were buried here, as Artnet News’ Richard Whiddington reports.
—Sonja Anderson, Smithsonian Magazine, 1 Apr. 2025
The petroglyphs can be found on volcanic tuff formations formed over 760,000 years ago when a large eruption released hot ash that settled over the region.
—Nathan Solis, Los Angeles Times, 11 Mar. 2025
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David Bressan, Forbes.com, 27 May 2025
Other rare finds at the site include a small bronze panther, a mosaic glass spindle whorl, and a tuff — or rock — votive, according to the release.
—Lauren Liebhaber, Miami Herald, 28 Apr. 2025
The structure is made of opus reticulatum—bricks laid in a diamond pattern—and contains a volcanic rock called tuff: details suggesting high status individuals were buried here, as Artnet News’ Richard Whiddington reports.
—Sonja Anderson, Smithsonian Magazine, 1 Apr. 2025
The petroglyphs can be found on volcanic tuff formations formed over 760,000 years ago when a large eruption released hot ash that settled over the region.
—Nathan Solis, Los Angeles Times, 11 Mar. 2025
See All Example Sentences for tuff
Cite this Entry
“Tuff.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tuff. Accessed 6 Jun. 2025.
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