Definition of rectilinear adjective from the Oxford Advanced American Dictionary

     

    rectilinear

     adjective
    adjective
    NAmE//ˌrɛktəˈlɪniər//
     
    (technology)
     
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  1. 1in a straight line rectilinear motion
  2. 2having straight lines rectilinear forms
See the Oxford Advanced Learner's Dictionary entry: rectilinear