Merriam-Webster Collegiate Dictionary - anaglyph

 noun  Etymology: Late Latin ~us embossed, from Greek ~os, from ~ein to emboss, from ana- + glyphein to carve — more at cleave  Date: 1651  1. a sculptured, chased, or embossed ornament worked in low relief  2. a stereoscopic motion or still picture in which the right component of a composite image usually red in color is superposed on the left component in a contrasting color to produce a three-dimensional effect when viewed through correspondingly colored filters in the form of spectacles  • ~ic adjective