Dictionary

friction

noun fric·tion \ˈfrik-shən\

: the act of rubbing one thing against another

: the force that causes a moving object to slow down when it is touching another object

: disagreement or tension between people or groups of people

Full Definition of FRICTION

1
a :  the rubbing of one body against another
b :  the force that resists relative motion between two bodies in contact
2
:  the clashing between two persons or parties of opposed views :  disagreement
3
:  sound produced by the movement of air through a narrow constriction in the mouth or glottis
fric·tion·less \-ləs\ adjective
fric·tion·less·ly adverb
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Origin of FRICTION

earlier, therapeutic rubbing of the limbs, from Middle French, from Latin friction-, frictio, from fricare to rub; akin to Latin friare to crumble, and perhaps to Sanskrit bhrīṇanti they injure
First Known Use: 1704

Other Physics Terms

amplitude, centrifugal, centripetal, convection, gradient, hysteresis, kinetic, lase, quantum

Rhymes with FRICTION

FRICTION Defined for Kids

friction

noun fric·tion \ˈfrik-shən\

Definition of FRICTION for Kids

1
:  the rubbing of one thing against another
2
:  resistance to motion between bodies in contact <Oiling the parts of the machine reduces friction.>
3
:  disagreement among persons or groups
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