hornfels

noun
horn·​fels | \ ˈhȯrn-ˌfelz How to pronounce hornfels (audio) \

Definition of hornfels

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

First Known Use of hornfels

1837, in the meaning defined above

History and Etymology for hornfels

German, from Horn horn + Fels cliff, rock

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The first known use of hornfels was in 1837

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Cite this Entry

“Hornfels.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hornfels. Accessed 31 Jul. 2021.

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More from Merriam-Webster on hornfels

Britannica.com: Encyclopedia article about hornfels

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