- adjective used to describe sound recorded onto two separate channels from two separate microphone elements and played back through a pair of headphones or two speakers
Information & Library Science
- noun an audio system or device that reproduces stereophonic sound
- noun photography using stereoscopy
Origin & History of “stereo”
Greek stereós meant ‘solid’. The earliest English compound noun formed from it was stereometry (16th c.), a mathematical term denoting the measurement of solid or three-dimensional objects. this was followed by stereographic (17th c.), stereotype (18th c.) (coined in French and originally used for a ‘solid’ printing block; the metaphorical ‘unvaried or conventional image’ emerged in the middle of the 19th century), stereoscope (19th c.) (a viewer for producing ‘solid’ or three-dimensional images), and stereophonic ‘producing three-dimensional sound’ (20th c.). Stereo was used in the 19th century as an abbreviation for stereotype and stereoscopic; its use for stereophonic dates from the early 1950s.