from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A fictitious name, especially a pen name.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A fictitious name, often used by writers and movie stars.
from the GNU version of the Collaborative International Dictionary of English
- n. A fictitious name assumed for the time, as by an author; a pen name; an alias.
from The Century Dictionary and Cyclopedia
- n. A false name; especially, a fictitious name assumed by an author in order to conceal or veil his identity.
- n. In natural history, the vernacular name of a species or other group of animals or plants, as distinguished from its tenable technical name: thus, robin is the pseudonym of Turdus migratorius.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a fictitious name used when the person performs a particular social role
French pseudonyme, from Greek pseudōnumon, neuter of pseudōnumos, falsely named : pseudēs, false; see pseudo- + onuma, name.(American Heritage® Dictionary of the English Language, Fourth Edition)
From pseudonymous, from French pseudonyme ("having a false name"), from Ancient Greek ψευδώνυμος (pseudōnumos), from ψευδής (pseudēs, "false") and ὄνυμα (onuma), from ὄνομα (onoma, "name"). (Wiktionary)