stereogram

[ ster-ee-uh-gram, steer- ]
/ ˈstɛr i əˌgræm, ˈstɪər- /

noun

a diagram or picture representing objects in a way to give the impression of solidity.
a stereograph.

Origin of stereogram

First recorded in 1865–70; stereo- + -gram1

British Dictionary definitions for stereogram

stereogram
/ (ˈstɛrɪəˌɡræm, ˈstɪər-) /

noun

British a stereo radiogram
another name for stereograph