Definition of pseudoscopy in US English:

pseudoscopy

noun

Physiology Psychology
  • The use of a pseudoscope; the phenomenon of a pseudoscopic illusion.

Origin

Early 20th century; earliest use found in Edward Titchener (1867–1927), experimental psychologist. From pseudoscope + -y; compare -scopy.

Pronunciation

pseudoscopy

/s(j)uːˈdɒskəpi/