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

     

    taster

     noun
    noun
    BrE BrE//ˈteɪstə(r)//
     
    ; NAmE NAmE//ˈteɪstər//
     
     
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  1. 1a person whose job is to judge the quality of wine, tea, etc. by tasting it
  2. 2(informal, especially British English) a small example of something for you to try in order to see if you would like more of it The programme is intended as a taster for those who might like to find out more about studying computer science.
  3. Word Origin late Middle English: in early use from Anglo-Norman French tastour, from Old French taster ‘to taste’; later from taste + -er.
See the Oxford Advanced American Dictionary entry: taster