Definition of perceptible adjective from the Oxford Advanced American Dictionary

     

    perceptible

     adjective
    adjective
    NAmE//pərˈsɛptəbl//
     
    (formal)
     
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  1. 1great enough for you to notice it synonym noticeable a perceptible change/increase/decline/impact The price increase has had no perceptible effect on sales. Her foreign accent was barely perceptible.
  2. 2(technology) that you can notice or feel with your senses the perceptible world opposite imperceptible
  3. Word Familyperceive verbperception nounperceptive adjectiveperceptible adjective (imperceptible)
perceptibly
 
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NAmE//pərˈsɛptəbli//
 
adverb Income per head rose perceptibly. It was perceptibly colder. His voice softened perceptibly.
See the Oxford Advanced Learner's Dictionary entry: perceptible