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Definition of cohesion noun from the Oxford Advanced American Dictionary

     

    cohesion

     noun
    noun
    NAmE//koʊˈhiʒn//
     
    [uncountable]
     
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  1. 1(formal) the act or state of keeping together synonym unity the cohesion of the nuclear family social/political/economic cohesion
  2. 2(physics) (chemistry) the force causing molecules of the same substance to stick together
See the Oxford Advanced Learner's Dictionary entry: cohesion