[ self-hahr-dn-ing, self- ]
/ ˌsɛlfˈhɑr dn ɪŋ, ˈsɛlf- /


noting or pertaining to any of various steels that harden after heating without quenching or other treatment.

Origin of self-hardening

First recorded in 1900–05

OTHER WORDS FROM self-hardening

self-hard·ened, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for self-hardening

  • This alloy, because hardened simply in air, was called “air-hardening” or “self-hardening.”

    Inventors at Work|George Iles