- The definition of a nom de plume is a pen name, or a named used by an author to write instead of using his real name.
An example of a nom de plume is Samuel Clemens for Mark Twain.
nom de plume definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a pen name; pseudonym
nom de plume definition by American Heritage Dictionary
nom de plume - Cultural Definition
French for “pen name”; an invented name under which an author writes. Mark Twain was the nom de plume of Samuel L. Clemens.