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To harden. [Obs.] It will embrawn and iron-crust his flesh. Nash.

To turn to marble; to harden. [Obs.] Thou dost emmarble the proud heart. Spenser.

To harden; to toughen; to make hardy. [Obs.] Manly limbs endured with little ease. Spenser.

To make hard as marble; to harden. [Obs.] Spenser.

The hardened parts of the external integument of an animal, including hair, feathers, nails, horns, scales, etc.,as well as the armor of armadillos and many reptiles, and the shells or hardened integument of numerous invertebrates; external skeleton; dermoskeleton.

To glut; to satiate; hence, to harden, to accustom. "Fleshed in triumphs." Glanvill. Old soldiers Fleshed in the spoils of Germany and France. Beau. & Fl.

To endeavor to overtake; to go in pursuit of; to chase; to pursue; to prosecute. I will harden the hearts of the Egyptians, and they shall follow them. Ex. xiv. 17.

d by cold; to be changed from a liquid to a solid state by the abstraction of heat; to be hardened into ice or a like solid body.

ecially, of boldness of disposition, sometimes of impudence; seeming; as, a bold front; a hardened front. With smiling fronts encountering. Shak. The inhabitants showed a bold front. Macaulay.

An impure resin of turpentine, hardened on the outside of pine trees by the spontaneous evaporation of its essential oil. When purified, it is called yellow pitch, white pitch, or Burgundy pitch.

oth plate by a hydraulic press, and the design is drawn upon this in a peculiar ink which hardens the surface wherever it is applied. The surface is then carefully rubbed or brushed, leaving the lines in relief.

A tool with a hardened steel point, formerly used instead of a diamond for cutting glass.

A vegetable secretion of many trees or plants that hardens when it exudes, but is soluble in water; as, gum arabic; gum tragacanth; the gum of the cherry tree. Also, with less propriety, exudations that are not soluble in water; as, gum copal and gum sandarac, which are really resins.

Face hammer, etc. See under Drop, Face, etc. -- Hammer fish. See Hammerhead. -- Hammer hardening, the process of hardening metal by hammering it when cold. -- Hammer shell (Zoöl.), any species of Malleus, a genus of marine bivalve shells, allied to the pearl oysters, having the wings narrow and elongated, so as to…

To harden; to make hard. [Obs.] Chaucer.

Steel hardened by the addition of other elements, as manganese, phosphorus, or (usually) carbon.

Confident; full of assurance; in a bad sense, morally hardened; shameless.

A process of hardening the face of steel, as armor plates, invented by Hayward A. Harvey of New Jersey, consisting in the additional carburizing of the face of a piece of low carbon steel by subjecting it to the action of carbon under long-continued pressure at a very high heat, and then to a violent chilling, as by a…

A method of transferring pictures from photographic negatives to hardened gelatin plates from which impressions are produced on paper as by lithography.

A threaded and fluted hardened steel cutter, resembling a tap, used in a lathe for forming the teeth of screw chasers, worm wheels, etc.