pseu·don·y·mous /suˈdɑnəməs/
  (a.)匿名的,使用筆名的
  Pseu·don·y·mous a.  Bearing a false or fictitious name; as, a pseudonymous work. -- Pseu*don*y*mous*ly, adv. -- Pseu*don*y*mous*ness, n.
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  pseudonymous
       adj : bearing or identified by an assumed (often pen) name; "the
             writings of Mark Twain are pseudonymous"