Word Study
Alto-rilievo
CIDE DICTIONARY
Alto-rilievo, n. [It.].
High relief; sculptured work in which the figures project more than half their thickness; as, this figure is an alto-rilievo or in alto-rilievo. [1913 Webster]
" When the figure stands only half out, it is called mezzo-rilievo, demi-rilievo, or medium relief; when its projection is less than one half, basso-rilievo, bas-relief, or low relief." [1913 Webster]
For further exploring for "Alto-rilievo" in Webster Dictionary Online