Definition of friction in English:


Line breaks: fric|tion
Pronunciation: /ˈfrɪkʃ(ə)n


[mass noun]
1The resistance that one surface or object encounters when moving over another: a lubrication system which reduces friction
More example sentences
  • Less friction also reduces the stress imposed on the material.
  • Light rail uses up to 80 per cent less energy than buses as it encounters less surface friction.
  • These substances reduce friction between the moving parts of equipment.
1.1The action of one surface or object rubbing against another: the friction of braking
More example sentences
  • Divergence may result from friction with the Earth's surface.
  • Shooting hard can cause the cue tip leather to loose friction with the cue ball, causing it to jump rather than spin.
  • It didn't heat up from friction with the skin, and it protected against hard blows and blasts.
1.2Conflict or animosity caused by a clash of wills, temperaments, or opinions: a considerable amount of friction between father and son
More example sentences
  • One other troubling situation she confronted was friction between the cultural groups.
  • In reading this account, we come to realise that the fights and friction between different groups in the hospital setting are universal and ubiquitous.
  • The best content comes from creative friction between program makers and management.


mid 16th century (denoting chafing or rubbing of the body or limbs, formerly much used in medical treatment): via French from Latin frictio(n-), from fricare 'to rub'.

Definition of friction in: