Wordnet 3.0
NOUN (1)
1. a fictitious name used when the person performs a particular social role;
[syn: pseudonym, anonym, nom de guerre]
The Collaborative International Dictionary of English v.0.48:
Pseudonym \Pseu"do*nym\, n. [Cf. F. pseudonyme. See Pseudonymous.] A fictitious name assumed for the time, as by an author; a pen name; an alias. [Written also pseudonyme.] [1913 Webster]

