adj hardened; not soft; indurated.
2. indurate ·adj without sensibility; unfeeling; obdurate.
3. indurate ·vt to make unfeeling; to deprive of sensibility; to render obdurate.
4. indurate ·vi to grow hard; to harden, or become hard; as, clay indurates by drying, and by heat.
5. indurate ·vt to make hard; as, extreme heat indurates clay; some fossils are indurated by exposure to the air.