Definition of friction noun from the Oxford Advanced Learner's Dictionary

     

    friction

     noun
    noun
    BrE BrE//ˈfrɪkʃn//
     
    ; NAmE NAmE//ˈfrɪkʃn//
     
    Energy and physical forces
     
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  1. 1[uncountable] the action of one object or surface moving against another Friction between moving parts had caused the engine to overheat.
  2. 2 [uncountable] (physics) the resistance (= the force that stops something moving) of one surface to another surface or substance moving over or through it The force of friction slows the spacecraft down as it re-enters the earth's atmosphere. See related entries: Energy and physical forces
  3. 3[uncountable, countable] friction (between A and B) disagreement or a lack of friendship among people who have different opinions about something synonym tension conflicts and frictions that have still to be resolved
  4. Word Origin mid 16th cent. (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’.Extra examples His decision led to considerable friction in his family. I’m exhausted from the constant friction between my boss and my colleagues. Rubbing the stones together produces friction. friction between neighbours friction between the two ethnic groups
See the Oxford Advanced American Dictionary entry: friction

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