HARDENING

• (noun) the act of making something harder (firmer or tighter or more compact)

• (noun) the process of becoming hard or solid by cooling or drying or crystallization

  "the hardening of concrete", "he tested the set of the glue"

  synonyms : curing , set , solidification , solidifying

• (noun) abnormal hardening or thickening of tissue

WordNet® 3.0, © 2006 by Princeton University.

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