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Hardened, or bony, integument of various animals.

Induration; hardening; especially, that form of induration produced in an organ by increase of its interstitial connective tissue.

A hardened body formed by certain fungi, as by the Claviceps purpurea, which produced ergot.

To twist; to distort; as, to screw his visage. He screwed his face into a hardened smile. Dryden.

Hardened masses of feces.

Hence, to prepare by drying or hardening, or removal of natural juices; as, to season timber.

Imperfectly indurated or hardened.

Moral perception or appreciation. Some are so hardened in wickedness as to have no sense of the most friendly offices. L' Estrange.

at which, sets; as, the setting of type, or of gems; the setting of the sun; the setting (hardening) of moist plaster of Paris; the setting (set) of a current.

In lichens, a Hardened cup or disk surrounded by a rim and containing the fructification, or asci.

cy Caucasus to shiver. Swift. The man that shivered on the brink of sin, Thus steeled and hardened, ventures boldly in. Creech.

kins, of multiplying facsimiles of an engraved steel plate by first rolling over it, when hardened, a soft steel cylinder, and then rolling the cylinder, when hardened, over a soft steel plate, which thus becomes a facsimile of the original. The process has been superseded by electrotypy.

The more or less firm or hardened framework of an invertebrate animal.

To become solid; to harden.

r the like) from threads produced by the extrusion of a viscid, transparent liquid, which hardens on coming into contact with the air; -- said of the spider, the silkworm, etc.

To make like stone; to harden. O perjured woman! thou dost stone my heart. Shak.

is must be done, and I would fain see Mortal so sturdy as to gainsay. Hudibras. A sturdy, hardened sinner shall advance to the utmost pitch of impiety with less reluctance than he took the first steps. Atterbury.

issive to guidance; as, a supple horse. If punishment . . . makes not the will supple, it hardens the offender. Locke.

A tool for forming an internal screw, as in a nut, consisting of a hardened steel male screw grooved longitudinally so as to have cutting edges. On tap. (a) Ready to be drawn; as, ale on tap. (b) Broached, or furnished with a tap; as, a barrel on tap. -- Plug tap (Mech.), a screw-cutting tap with a slightly tapering e…

nted about 1899 by Frederick W. Taylor and Maunsel B. White) for giving toughness to self-hardening steels. The steel is heated almost to fusion, cooled to a temperature of from 700º to 850º C. in molten lead, further cooled in oil, reheated to between 370º and 670º C., and cooled in air.