Definition of vertical noun from the Oxford Advanced American Dictionary

     

    vertical

     noun
    noun
    NAmE//ˈvərt̮ɪkl//
     
    the vertical
     
    jump to other results
  1. 1a vertical line or position synonym perpendicular
  2. 2 The wall is several degrees off the vertical.
See the Oxford Advanced Learner's Dictionary entry: vertical