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friction

noun [U] (FORCE)
 
 
/ˈfrɪk.ʃən/

Definition

the force that makes it difficult for one object to slide along the surface of another or to move through a liquid or gas: When you rub your hands together the friction produces heat.Energy, force and powerPower and intensity frictional
 
 
/-əl/ adjective
Energy, force and powerPower and intensity
(Definition of friction noun (FORCE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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