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rties in opinions or work; a disagreement tending to prevent or retard progress. Angle of friction (Mech.), the angle which a plane onwhich a body is lying makes with a horizontal plane,when the hody is just ready to slide dewn the plane.

Relating to friction; moved by friction; produced by friction; as, frictional electricity. Frictional gearing, wheels which transmit motion by surface friction instead of teeth. The faces are sometimes made more or less V-shaped to increase or decrease friction, as required.

Having no friction.

The act of rubbing against. [Obs.]

Something to lessea. Tending to lessen friction.

To rub or wear off; to waste or wear away by friction; as, to abrade rocks. Lyell.

The act of abrading, wearing, or rubbing off; the wearing away by friction; as, the abrasion of coins.

ish, and is used for pipe mouthpieces, beads, etc., and as a basis for a fine varnish. By friction, it becomes strongly electric.

A white or flesh-red mineral, of the zeolite, occurring in isometric crystals. By friction, it acquires a weak electricity; hence its name.

Not becoming electrified by friction; -- opposed to idioelectric. -- n.

Anything to prevent the effects of friction, esp. a compound lubricant for machinery, etc., often consisting of plumbago, with some greasy material; antifriction grease.

Rubbed; worn by friction. Milton.

The act of rubbing together; friction; the act of wearing by friction, or by rubbing substances together; abrasion. Effected by attrition of the inward stomach. Arbuthnot.

of fifty parts of tin to five of antimony and one of copper) used in bearings to diminish friction.

direction within certain limits. -- Ball bearings, a mechanical device for lessening the friction of axle bearings by means of small loose metal balls. -- Ball cartridge, a cartridge containing a ball, as distinguished from a blank cartridge, containing only powder. -- Ball cock, a faucet or valve which is opened or…

To be restrained from motion, or from customary or natural action, as by friction.

A piece of mechanism for retarding or stopping motion by friction, as of a carriage or railway car, by the pressure of rubbers against the wheels, or of clogs or ratchets against the track or roadway, or of a pivoted lever against a wheel or drum in a machine.

A device for checking motion, or for measuring friction. See Brake, n. 9 & 10.

Also, in a wider sense, the sound caused by the friction of the outgoing breath in the throat, mouth, etc., when the glottis is wide open; aspiration; the sound expressed by the letter h.

A wheel without teeth, used to turn a similar one by the friction of bristles or something brushlike or soft attached to the circumference.