hornstone

noun
horn·​stone | \ ˈhȯrn-ˌstōn How to pronounce hornstone (audio) \

Definition of hornstone

: a mineral that is a variety of quartz much like flint but more brittle

First Known Use of hornstone

1728, in the meaning defined above

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The first known use of hornstone was in 1728

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Cite this Entry

“Hornstone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hornstone. Accessed 7 Mar. 2021.

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