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

     

    riser

     noun
    noun
    BrE BrE//ˈraɪzə(r)//
     
    ; NAmE NAmE//ˈraɪzər//
     
     
    jump to other results
  1. 1early/late riser a person who usually gets out of bed early/late in the morning
  2. 2(specialist) the vertical part between two steps in a set of stairs compare tread
See the Oxford Advanced American Dictionary entry: riser