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ust, or the like; to diminish, dull, or destroy the luster of; to sully; as, to tarnish a metal; to tarnish gilding; to tarnish the purity of color. "Tarnished lace." Fuller. Used also figuratively; as, to tarnish one's honor.

ssium and basic antimony. It is a poisonous white crystalline substance having a sweetish metallic taste, and used in medicine as a sudorific and emetic.

the industrial arts, especially of the more important manufactures, as spinning, weaving, metallurgy, etc.

The gate of a mold, through which the melted metal is poured; runner, geat.

To pour, as steel, from a melting pot; to fill, as a mold, with molten metal.

Composed of small plates, as of horn or metal, overlapping like tiles; -- said of a kind of ancient armor. Fairholt.

A rare nonmetallic element, analogous to sulphur and selenium, occasionally found native as a substance of a silver-white metallic luster, but usually combined with metals, as with gold and silver in the mineral sylvanite, with mercury in Coloradoite, etc. Symbol Te. Atomic weight 125.2. Graphic tellurium. (Min.) See S…

To bring to a proper degree of hardness; as, to temper iron or steel. The tempered metals clash, and yield a silver sound. Dryden.

Capable of being tempered. The fusible, hard, and temperable texture of metals. Emerson.

ree of temper in tempering steel, as pale straw yellow for lancets, razors, and tools for metal; dark straw yellow for penknives, screw taps, etc.; brown yellow for axes, chisels, and plane irons; yellow tinged with purple for table knives and shears; purple for swords and watch springs; blue for springs and saws; and…

Having parts apt to adhere to each other; cohesive; tough; as, steel is a tenacious metal; tar is more tenacious than oil. Sir I. Newton.

e. -- Tension rod (Engin.), an iron rod used as a tension member to strengthen timber or metal framework, roofs, or the like.

A rare metallic element, of uncertain identification, supposed to exist in certain minerals, as gadolinite and samarskite, with other rare ytterbium earth. Symbol Tr or Tb. Atomic weight 150.

n iron sheets coated with an alloy of lead and tin; -- so called because made up of three metals.

To examine, as the thickness of the metal at the muzzle of a gun; or, in general, to examine the thickness of, as ordnance, in order to ascertain its strength.

A cupel or cupelling hearth in which precious metals are melted for trial and refinement. Our ingots, tests, and many mo. Chaucer.

A telluride of bismuth. It is of a pale steel-gray color and metallic luster, and usually occurs in foliated masses. Calles also telluric bismuth.

A sulphide of antimony and copper, with small quantities of other metals. It is a very common ore of copper, and some varieties yield a considerable presentage of silver. Called also gray copper ore, fahlore, and panabase.

ss, under Word. -- Text letter, a large or capital letter. [Obs.] -- Text pen, a kind of metallic pen used in engrossing, or in writing text-hand.

A thin plate of metal. [Obs.] "A teyne of silver." Chaucer.