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Meaning of misuser

mis•us•er

Pronunciation: (mis-y'zur), [key]
— n. Law.
  1. abuse of a right; unlawful use of an office, franchise, benefit, etc.

mis•us•er

Pronunciation: (mis-y'zur), [key]
— n.
  1. a person who misuses.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.