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self-hardening

[self-hahr-dn-ing, self-]
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adjective
  1. noting or pertaining to any of various steels that harden after heating without quenching or other treatment.
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Origin of self-hardening

First recorded in 1900–05
Related formsself-hard·ened, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for self-hardening

Historical Examples

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

    Inventors at Work

    George Iles