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

     

    cohesion

     noun
    noun
    BrE BrE//kəʊˈhiːʒn//
     
    ; NAmE NAmE//koʊˈhiːʒn//
     
    [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
  3. Word Origin mid 17th cent.: from Latin cohaes- ‘cleaved together’, from the verb cohaerere, from co- ‘together’ + haerere ‘to stick’, on the pattern of adhesion.
See the Oxford Advanced American Dictionary entry: cohesion