[1] : WordNet (r) 2.0

bas relief
     n : a sculptural relief in which forms extend only slightly from
         the background; no figures are undercut syn: low relief,
          basso relievo, basso rilievo ant: alto relievo
see also:
low relief basso relievo basso rilievo alto relievo 

[2] : Moby Thesaurus II by Grady Ward, 1.0

39 moby thesaurus words for "bas relief":
   anaglyph, bellying, boldness, boss, bulging, cameo, cameo glass,
   cavo-rilievo, cut glass, embossment, eminence, excrescence,
   excrescency, extrusion, gibbosity, gibbousness, glyph, glyptograph,
   high relief, intaglio, intaglio rilevato, intaglio rilievo,
   low relief, mask, medal, medallion, plaquette, projection,
   prominence, protrusion, protuberance, protuberancy, relief,
   relievo, salience, salient, sculptured glass, tuberosity,
   tuberousness

Bas Relief >> B Words
Bas Relief, definition of term: Bas Relief
bas+relief_pag1.html

Bas Mitzvah >> B Words
Bas Mitzvah, definition of term: Bas Mitzvah
bas+mitzvah_pag1.html