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

     

    roundness

     noun
    noun
    BrE BrE//ˈraʊndnəs//
     
    ; NAmE NAmE//ˈraʊndnəs//
     
    [uncountable]
     
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  1. 1the quality of being shaped like a circle or ball His face had lost its boyish roundness.
  2. 2the quality of having a curved shape the roundness of her shoulders