Ourania, Gr. (οὐρανια, i. e. in the air). A game at catch-ball.
Outline, which has no real existence in nature, is defined by Aristotle as πέρας στερεοῦ, “the boundary of solid form.” The only light and shade used in outlines is the greater lightness or darkness of the lines.
Outré, Fr. Exaggerated, fantastic, absurd.
Oval (Lat. ovum, an egg). The oval, formed of a continuous curve, differs from the Ellipse, which is equally broad at both ends, in having one end narrower than the other, and is sometimes called a false ellipse. Ovals in windows, arches, and other parts of architecture exist, but are rare.
Ovatio. A lesser triumph distinguished from Triumphus. The general entered the city on foot, and dressed in the toga prætexta of a magistrate, attended only by musicians, and knights and plebeians; and the sacrifice by which the ceremony concluded was a sheep (ovis) instead of a bull; hence the word ovation.
Overstory, Arch. The Clerestory.
Overture (Fr. ouverture, an opening; It. sinfonia). Instrumental music preceding an opera, &c.
Ovile, R. Literally, a sheep-fold, and thence an enclosure in the Campus Martius in which each century assembled before proceeding to place its votes (tabellæ) in the urn (cista). It was divided into compartments approached through narrow passages called pontes of ponticuli. On entering, the citizens received their voting-tablets (tabellæ), and when they had consulted within the enclosure, they passed out by another pons, at which they threw their votes into the chest (cista).
Fig. 513. Ovolo or Quarter-round.