9 Grammatical Pitfalls


[soo-don-uh-muh s] /suˈdɒn ə məs/
bearing a false or fictitious name.
writing or written under a fictitious name.
Origin of pseudonymous
1700-10; < Greek pseudṓnymos; see pseudonym, -ous
Related forms
pseudonymously, adverb
pseudonymousness, noun
Can be confused
anonymous, pseudonymous. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for pseudonymous
  • One is anonymous, the other apparently pseudonymous, and neither seems to have circulated in samizdat.
  • The same pseudonymous identifier must be used for the same patient on subsequent submissions.
  • Privacy can be maintained by, for example, replacing a patient's name and social security number with a pseudonymous identifier.
  • Anonymous and pseudonymous records pose no meaningful privacy threat.
  • In the case of multi-authored and anonymous or pseudonymous works, this is not a straightforward matter.
  • Authentication can support access whether the consumer chooses to be anonymous, pseudonymous, or known.
  • Governments particularly threaten privacy through law and regulation that prevent people from remaining anonymous or pseudonymous.
British Dictionary definitions for pseudonymous


having or using a false or assumed name
writing or having been written under a pseudonym
Derived Forms
pseudonymously, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for pseudonymous

1766, from Modern Latin pseudonymus, from Greek pseudonymos (see pseudonym). Related: Pseudonymously.

Online Etymology Dictionary, © 2010 Douglas Harper
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