horn·​fels ˈhȯrn-ˌfelz How to pronounce hornfels (audio)
: a fine-grained silicate rock produced by metamorphism especially of slate

Word History


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

Dictionary Entries Near hornfels

Cite this Entry

“Hornfels.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hornfels. Accessed 12 Apr. 2024.

Kids Definition


horn·​fels ˈhȯ(ə)rn-ˌfelz How to pronounce hornfels (audio)
: a fine-grained rock formed by the action of heat

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