tiara Meaning, Definition & Usage

  1. noun a jeweled headdress worn by women on formal occasions

WordNet

Ti*a"ra noun
Etymology
L., from Gr. , of Persian origin.
Definitions
  1. 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.
  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. Fig.: The papal dignity.

Webster 1913