Definition of yellow adjective from the Oxford Advanced American Dictionary

      

    yellow

     adjective
    adjective
    NAmE//ˈyɛloʊ//
     
    (yellower, yellowest)
     
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  1. 1 having the color of lemons or butter pale yellow flowers a bright yellow rain jacket
  2. 2 (informal) (disapproving) easily frightened synonym cowardly
  3.  
    noun [uncountable, singular]
See the Oxford Advanced Learner's Dictionary entry: yellow