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



    BrE BrE//ɪkˈsperɪməntə(r)//
    ; NAmE NAmE//ɪkˈsperɪməntər//
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  1. 1a person who carries out a scientific experiment or experiments in order to study what happens and to gain new knowledge After each trial the experimenter recorded the amount of food consumed.
  2. 2experimenter (with something) a person who tries or tests new ideas, methods, etc. to find out what effect they have This writer was one of the early experimenters with the new machine.