Ĭn′du-rā′tion, n.

n. [L. Lat. induratio, Fr. induration, Sp. induracion, It. indurazione.]

1. The act of hardening, or process of growing hard.
2. The state of being indurated, or having become hard.
3. Hardness of heart; obduracy; stiffness; want of pliancy.

A certain induration of character had arisen from long habits of business. Coleridge.