from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The state of being pseudonymous, of hiding one's true identity behind a pseudonym
from the GNU version of the Collaborative International Dictionary of English
- n. The using of fictitious names, as by authors.
from The Century Dictionary and Cyclopedia
- n. The state of being pseudonymous, or of bearing a false name or signature; the act or practice of writing under an assumed name.
pseudonym + -ity (Wiktionary)