prin·cess 
(prĭnsĭs, -sĕs′, prĭn-sĕs)
(prĭnsĭs, -sĕs′, prĭn-sĕs)n.
1. A woman member of a royal family other than the monarch, especially a daughter of a monarch.
2.
a. A woman who is a ruler of a principality.
b. A woman who is a hereditary ruler; a queen.
3. A noblewoman of varying status or rank.
4. The wife of a prince.
5. A woman regarded as having the status or qualities of a princess.
adj.
Designed to hang in smooth, close-fitting, unbroken lines from shoulder to flared hem: a princess dress.
[Middle English princesse, from Old French, feminine of prince, prince; see PRINCE.]