D defs.my
Entry 1 sense Webster, 1913

Pseudonym

/so͞od'-ən-ĭmˌ/ · Pseu·do·nym · IPA /ˈsu.də.nɪm/
01 n. A fictitious name assumed for the time, as by an author; a pen name; an alias.
  1. 1.
    A fictitious name assumed for the time, as by an author; a pen name; an alias.