Definition of perceptionism in English:

perceptionism

noun

Philosophy
rare
  • The theory that all knowledge derives ultimately from sense-perception. Also: the theory that everything can be explained by human perceptions of reality rather than by external reality.

Origin

Late 19th century; earliest use found in Alexander Beresford-Hope (1820–1887), politician and author. From perception + -ism.

Pronunciation

perceptionism

/pəˈsɛpʃənɪz(ə)m//pəˈsɛpʃ(ə)nɪz(ə)m/