bas–re·lief 
/ˌbɑ:rɪˈli:f/ noun
plural bas–re·liefs /ˌbɑ:rɪˈli:f/ noun : a kind of sculpture in which shapes are carved so that they are only slightly higher than the flat background [count] ▪ the bas-reliefs on the building's façade [noncount] ▪ a façade decorated with flowers in bas-relief — often used before another noun ▪ bas-relief carvings/sculptures
