Relievo or Relief, are terms applied to that mode of working in sculpture by which figures are made to project from the ground or body on which they are formed, and to which they remain attached. The same term is used, whether the figure is cut with the chisel, modelled in clay, or cut in metal or other substance. There are three kinds of relievo: - First, alto-relievo, (or high relief,) when the figures are so prominent from the ground, that merely a small part of them remains attached to it. Mezzo-relievo, (or half relief,) when one half of the figure rises from the ground, in such manner that the figure seems divided by it. Basso-relievo, (or low relief,) when the work is raised but little from the ground, as in medals, and generally in friezes, and other ornamented parts of buildings. Low-relief, or bas-relief, is the comprehensive term by which all works in relievo are usually indiscriminately denominated.