What does "indurate" mean?

Indurate: Without sensibility; unfeeling; obdurate.

Additional senses

  1. 2.To make hard; as, extreme heat indurates clay; some fossils are indurated by exposure to the air.
  2. 3.To make unfeeling; to deprive of sensibility; to render obdurate.
  3. 4.To grow hard; to harden, or become hard; as, clay indurates by drying, and by heat.

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