black diamond

noun

1
: dense black hematite
2
black diamonds plural : coal sense 3a
3

Examples of black diamond 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.
While the Wilderness is not engineered for black diamond rock crawling on the Rubicon trail, X-MODE includes Low Speed/Low Ratio Gradient Control that automatically senses steep inclines and shifts the CVT into its lowest ratio (4.066:1) for crawling—almost mimicking a low-range transfer case. Michael Harley, Forbes, 11 Mar. 2025 To put that into perspective, a black diamond ski run is typically about 25 degrees, and gym treadmills rarely go more than 9 degrees. Alex Hutchinson, Outside Online, 14 Feb. 2025 Of those 17, three are greens, seven are blues, four are black diamonds, and three are considered freestyle terrain. Lydia Mansel, Travel + Leisure, 20 Jan. 2025 Included: a stage that was placed against a double black diamond hugged with moguls, an advanced request for skiers that led to comical TikToks but serious concerns for ski patrol. Teaghan Skulszki, Outside Online, 28 Feb. 2025 See All Example Sentences for black diamond

Word History

First Known Use

1763, in the meaning defined at sense 3

Time Traveler
The first known use of black diamond was in 1763

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Cite this Entry

“Black diamond.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/black%20diamond. Accessed 3 Apr. 2025.

Kids Definition

black diamond

noun
Last Updated: - Updated example sentences
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