[ sahy-koh-fiz-iks ]

noun(used with a singular verb)
  1. the branch of psychology that deals with the relationships between physical stimuli and resulting sensations and mental states.

Origin of psychophysics

From the German word Psychophysik, dating back to 1875–80. See psycho-, physics

Other words from psychophysics

  • psy·cho·phys·i·cal [sahy-koh-fiz-i-kuhl], /ˌsaɪ koʊˈfɪz ɪ kəl/, psy·cho·phys·ic, adjective
  • psy·cho·phys·i·cal·ly, adverb
  • psy·cho·phys·i·cist [sahy-koh-fiz-uh-sist], /ˌsaɪ koʊˈfɪz ə sɪst/, noun

Words Nearby psychophysics Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use psychophysics in a sentence

  • The relations so determined constitute the newest of the sciences, psychophysiology or psychophysics.

    Herbert Spencer | J. Arthur Thomson

British Dictionary definitions for psychophysics


/ (ˌsaɪkəʊˈfɪzɪks) /

  1. (functioning as singular) the branch of psychology concerned with the relationship between physical stimuli and the effects they produce in the mind

Derived forms of psychophysics

  • psychophysical, adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012