·adj Hardened; not soft; indurated.
II. Indurate ·adj Without sensibility; unfeeling; obdurate.
III. Indurate ·vt To make unfeeling; to deprive of sensibility; to render obdurate.
IV. Indurate ·vi To grow hard; to harden, or become hard; as, clay indurates by drying, and by heat.
V. Indurate ·vt To make hard; as, extreme heat indurates clay; some fossils are indurated by exposure to the air.