Definition of pseudonymic in US English:

pseudonymic

adjective

  • That is or has a pseudonym, published under a pseudonym.

Origin

Mid 19th century; earliest use found in Thomas Lovell Beddoes (1803–1849), poet. From pseudonym + -ic. Compare German pseudonymisch published under a pseudonym.

Pronunciation

pseudonymic

/ˌs(j)uːdə(ʊ)ˈnɪmɪk/