Zener card
Noun
Meaning
Zener card (plural Zener cards)
One of a set of twenty-five cards, each featuring one of five symbols (circle, plus sign, square, star, wavy lines), used by researchers to test claims of ESP or remote viewing.
Noun
Zener card (plural Zener cards)
One of a set of twenty-five cards, each featuring one of five symbols (circle, plus sign, square, star, wavy lines), used by researchers to test claims of ESP or remote viewing.