tachistoscope

noun

ta·​chis·​to·​scope tə-ˈki-stə-ˌskōp 

ta-

: an apparatus for the brief exposure of visual stimuli that is used in the study of learning, attention, and perception

tachistoscopic

tə-ˌki-stə-ˈskä-pik 

adjective

tachistoscopically

tə-ˌki-stə-ˈskä-pi-k(ə-)lē 

adverb

Word History

Etymology

Greek tachistos (superlative of tachys swift) + International Scientific Vocabulary -scope

First Known Use

circa 1890, in the meaning defined above

Medical Definition

tachistoscope

noun

ta·​chis·​to·​scope tə-ˈkis-tə-ˌskōp-, ta- 

: an apparatus for the brief exposure of visual stimuli that is used in the study of learning, attention, and perception

tachistoscopic

-ˌkis-tə-ˈskäp-ik 

adjective

tachistoscopically

-i-k(ə-)lē 

adverb