Hardening is the process by which something becomes harder or is made harder.

Hardening may refer to:

  • Hardening (metallurgy), a process used to increase the hardness of a metal
  • Hardening (botany) or cold hardening, a process in which a plant undergoes physiological changes to mitigate damage from cold temperatures
  • Hardening (computing), the process of securing a system against attack
  • Target hardening, strengthening of the security of a building or installation to protect it from attack
  • Sclerotization, a biochemical process forming cuticle in arthropods

See also

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