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

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

mortar hardens by drying. The deliberate judgment of those who knew him [A. Lincoln] has hardened into tradition. The Century.

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

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.

A hardened, engraved steel punch for impressing a device upon a die, used in coining, etc.

One who is corrigible; especially, a hardened criminal; as, the perpetual imprisonment of incorrigibles.

Hardened; not soft; indurated. Tyndale.

Hardened; as, indurated clay; an indurated heart. Goldsmith.

uch used in Russia. The last is a tapering bundle of leather thongs twisted with wire and hardened, so that it mangles the flesh.

A kind of floor cloth made by laying hardened linseed oil mixed with ground cork on a canvas backing.

Hardened beyond sensibility or recovery; alienated; insensible; as, lost to shame; lost to all sense of honor.

ourageous, resolute, noble. Let's briefly put on manly readiness. Shak. Serene and manly, hardened to sustain The load of life. Dryden.

of numerous species of solitary bees of the genus Osmia. They construct curious nests of hardened mud and sand. -- Mason moth (Zoöl.), any moth whose larva constructs an earthen cocoon under the soil. -- Mason shell (Zoöl.), a marine univalve shell of the genus Phorus; -- so called because it cements other shells an…

A perforated board, block of plaster, hardened sand, etc., in which a pattern is partly imbedded when a mold is made, for giving shape to the surfaces of separation between the parts of the mold. Match boarding (Carp.), boards fitted together with tongue and groove, or prepared to be so fitted. -- Match game, a game a…

g. Rogers. Mild, or Low, steel, steel that has but little carbon in it and is not readily hardened.

A hardened steel roller having a design in relief, used for imprinting a reversed copy of the design in a softer metal, as copper.

Hardened in feelings, esp. against moral or mollifying influences; unyielding; hard-hearted; stubbornly wicked. The very custom of evil makes the heart obdurate against whatsoever instructions to the contrary. Hooker. Art thou obdurate, flinty, hard as steel, Nay, more than flint, for stone at rain relenteth Shak.…

as, his orthography is vicious. When spelling no longer follows the pronunciation, but is hardened into orthography. Earle.