Definition of "indurate" [in•du•rate]

• To make hard; harden: soil that had been indurated by extremes of climate. (verb-transitive)
• To inure, as to hardship or ridicule. (verb-transitive)
• To make callous or obdurate: "It is the curse of revolutionary calamities to indurate the heart” ( Helen Maria Williams). (verb-transitive)
• To grow hard; harden. (verb-intransitive)
• To become firmly fixed or established. (verb-intransitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Bertram Cornell, the indurate, cold-blooded Englishman, is struck by many arrows but remains upright and still as a statue as his comrades make their way to safety."
• "Usage: We see so much bad news every day that we risk becoming an indurate society, incapable of deep feeling until great tragedy."
• "He shall have all the good words that may be given, [2082] a proper man, and 'tis pity he hath no preferment, all good wishes, but inexorable, indurate as he is, he will not prefer him, though it be in his power, because he is indotatus, he hath no money."