'Rounded' in the Bible

And the mouth of it within the crown and above was a cubit; and its mouth was rounded, as the work of the base, a cubit and a half; and also upon its mouth was sculpture; but their panels were square, not round.

the throne had six steps, and the top of the throne was rounded behind; and there were arms on each side at the place of the seat, and two lions stood beside the arms;