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hardening

[ hahr-dn-ing ]
/ ˈhɑr dn ɪŋ /
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noun

a material that hardens another, as an alloy added to iron to make steel.
the process of becoming hard or rigid.

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Origin of hardening

First recorded in 1620–30; harden + -ing1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for hardening

British Dictionary definitions for hardening

hardening
/ (ˈhɑːdənɪŋ) /

noun

the act or process of becoming or making hard
a substance added to another substance or material to make it harder
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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