MOLE, (moler), among the Romans, was also used for a kind of mausoleum, built in manner of a round tower on a square base, insulate, encompassed with columns, and covered with a dome.—The mole of the emperor Adrian, now the castle of St Angelo, was the greatest and most flatly of all the moles. It was crowned with a brazen pine apple, wherein was a golden urn containing the ashes of the emperor.