Zener cards

plural noun
Ze·​ner cards | \ ˈzēnə(r)-\

Definition of Zener cards

: a set of 25 cards that consists of 5 cards of each of 5 kinds bearing a circle, a rectangle, a cross, wavy lines, or a star and that is used in research in extrasensory perception

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History and Etymology for Zener cards

after Karl E. Zener †1964 American psychologist

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