n.
Pronunciation: t ə - ' kis-t ə - ˌ sk ō p, ta-
Function: noun
Etymology: Greek tachistos (superl. of tachys swift) + International Scientific Vocabulary -scope
Date: circa 1890
: an apparatus for the brief exposure of visual stimuli that is used in the study of learning, attention, and perception
– ta · chis · to · scop · ic \ - ˌ kis-t ə - ' skä-pik \ adjective
– ta · chis · to · scop · i · cal · ly \ -pi-k( ə -)l ē \ adverb