induration

In`du*ra"tion, n. Etym: [Cf. F. induration, L. induratio hardness of heart.] 1. The act of hardening, or the process of growing hard. 2. State of being indurated, or of having become hard. 3. Hardness of character, manner, sensibility, etc.; obduracy; stiffness; want of pliancy or feeling. A certain induration of character had arisen from long habits of business. Coleridge.

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