superharden

verb
su·​per·​hard·​en | \ ˌsü-pər-ˈhär-dᵊn How to pronounce superharden (audio) \
superhardened; superhardening; superhardens

Definition of superharden

transitive verb

: to make (something) extremely hard … enclosed in steel cases superhardened with a proprietary technology by a company that treats jet turbine blades …— Richard Nalley superhardened missile silos

First Known Use of superharden

1874, in the meaning defined above

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Time Traveler for superharden

Time Traveler

The first known use of superharden was in 1874

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Cite this Entry

“Superharden.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/superharden. Accessed 25 Jul. 2021.

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