Ovolo (or ovulo) in
architecture, is a
molding known also as the echinus, which in
classical architecture was invariably
carved with the
egg-and-dart ornament. The molding is called a quarter-round by woodworkers. This is not to be confounded with the "
echinus" of the
Doric capital, as this was of a more varied form and of much larger dimensions than the ovolo, which was only a subordinate molding.