- A form of headdress worn by the ancient Persians. According
to Xenophon, the royal tiara was encircled with a diadem, and was high
and erect, while those of the people were flexible, or had rims turned
over. - 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. Fig.: The papal dignity.
Definition
[ n.]