noun /kəʊˈhiːʒn/
  1. (formal) the act or state of keeping together
    • the cohesion of the nuclear family
    • social/political/economic cohesion
  2. ​(physics, chemistry) the force causing molecules of the same substance to stick together
  3. technical a close relationship, based on grammar or meaning, between two parts of a sentence or a larger piece of writing
Origin: mid 17th cent.: from Latin cohaes- ‘cleaved together’, from the verb cohaerere, from co- ‘together’ + haerere ‘to stick’, on the pattern of adhesion.

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