Tī-ā'rȧ, n.
n. [Lat., It., & Sp. tiara, Gr. τιάρα, τιάρας, τιήρης, Fr. tiare; A-S. tyr.]
Sense 1. A form of head-dress resembling a hat with a high crown, worn by the ancient Persians. According to Xenophon, the royal tiara was encircled with the crown.
Sense 2. The pope’s triple crown. It was at first a round, high cap, but was afterward encompassed with a crown, subsequently with a second, and finally with a third.
