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The bark of the oak, and some other trees, bruised and broken by a mill, for tanning hides; -- so called both before and after it has been used. Called also tan bark.

Same as Banxring.

Any one of numerous species of bright-colored singing birds belonging to Tanagra, Piranga, and allied genera. The scarlet tanager (Piranga erythromelas) and the summer redbird (Piranga rubra) are common species of the United States.

Of or pertaining to the tanagers.

Tanagrine.

An Asiatic wild dog (Canis procyonoides), native of Japan and adjacent countries. It has a short, bushy tail. Called also raccoon dog.

A team of horses harnessed one before the other. "He drove tandems." Thackeray. Tandem engine, a compound steam engine having two or more steam cylinders in the same axis, close to one another. -- Tandem bicycle or tricycle, one for two persons in which one rider sits before the other.

A kind of two-wheeled vehicle with seats back to back, the front one somewhat elevated.

A steam engine having two or more steam cylinders in line, with a common piston rod.

= Cascade system.

A coarse blackish seaweed (Fuscus nodosus). Dr. Prior. Tang sparrow (Zoöl.), the rock pipit. [Prov. Eng.]

An East Indian civet (Viverra tangalunga).

A hybrid between the tangerine orange and the grapefruit, or pomelo; also, the fruit.

Tangency. [R.]

The quality or state of being tangent; a contact or touching.

A tangent line curve, or surface; specifically, that portion of the straight line tangent to a curve that is between the point of tangency and a given line, the given line being, for example, the axis of abscissas, or a radius of a circle produced. See Trigonometrical function, under Function. Artificial, or Logarithmi…

A tension spoke of a bicycle or similar wheel, secured tangentially to the hub.

A worm or worm wheel; a tangent screw.

Tangential.

Of or pertaining to a tangent; in the direction of a tangent. Tangential force (Mech.), a force which acts on a moving body in the direction of a tangent to the path of the body, its effect being to increase or diminish the velocity; -- distinguished from a normal force, which acts at right angles to the tangent and ch…