hornfels

noun

horn·fels ˈhȯrn-ˌfelz

: a fine-grained silicate rock produced by metamorphism especially of slate

Word History

Etymology

German, from Horn horn + Fels cliff, rock

First Known Use

1837, in the meaning defined above

Time Traveler

The first known use of hornfels was in 1837

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Horney

hornfels

hornfish

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Style

“Hornfels.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hornfels. Accessed 7 Jul. 2026.

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Kids Definition

hornfels

noun

horn·fels ˈhȯ(ə)rn-ˌfelz

: a fine-grained rock formed by the action of heat

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hornfels

noun

Word History

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