induration noun. [ɪndjʊ'reɪʃ(ǝ)n] LME.
[Old & mod. French, or late Latin induratio(n-), formed as INDURATE verb: see -ATION.]
1. The action of hardening; the process of being hardened or becoming hard; hardened condition; esp. (a) consolidation or hardening of a rock or soil by heat, pressure, chemical action, etc.; (b) Medicine abnormal hardening of an organ or tissue. LME.

2. A hardening of character or feeling; obstinacy, stubbornness; callousness. L15.

[TahlilGaran] English Dictionary ▲