bas-relief
US /ˌbɑːs rɪˈliːf/
UK /ˌbɑːs rɪˈliːf/
1.
a type of sculpture in which the figures are carved in a shallow relief, so that they stand out only slightly from the background
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The ancient Egyptian tomb featured intricate bas-reliefs depicting daily life.
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The artist specialized in creating large-scale bas-reliefs for public buildings.