stereo

A system of recording or reproducing sound that uses two or more channels, each playing a portion of the original sound at different locations in order to simulate the separation of sources along at least one spatial dimension.

Any object or device equipped with audio components that reproduces sound in stereo, such as a stereo console in the home.

Of sound, music, etc, recorded in stereo.

Of a pair of images: one depicting the view as would be seen from one eye and the other from the other eye, so that when viewed appropriately, they combine to give an impression of three dimensions.