From WordNet (r) 2.0 (August 2003) [wn]:
persona
n 1: an actor's portrayal of someone in a play; "she played the
part of Desdemona" [syn: character, role,
theatrical role, part]
2: (Jungian psychology) a personal facade that one presents to
the world; "a public image is as fragile as Humpty Dumpty"
[syn: image]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Persona \Per*so"na\, n.; pl. {Person[ae]}. [L.] (Biol.)
Same as Person, n., 8.
[1913 Webster]