Definition of pseudoscope in US English:

pseudoscope

noun

Physiology Psychology
  • A binocular optical instrument for producing a stereoscopic image in which the appearance of depth is reversed by transposing the images seen by the left and right eyes.

Origin

Mid 19th century; earliest use found in Charles Wheatstone (1802–1875), developer of telegraphy. From pseudo- + -scope.

Pronunciation

pseudoscope

/ˈs(j)uːdə(ʊ)skəʊp/