Anaglyph

from WordNet (r) 3.0 (2006)

anaglyph
    n 1: moving or still pictures in contrasting colors that appear
         three-dimensional when superimposed
    2: anything carved in low relief

from The Collaborative International Dictionary of English v.0.48

Anaglyph \An"a*glyph\, n. [Gr. ? wrought in low relief, ?
   embossed work; ? + ? to engrave.]
   Any sculptured, chased, or embossed ornament worked in low
   relief, as a cameo.
   [1913 Webster] Anaglyphic