Misuser

Mis·us'er noun 1. One who misuses. 'Wretched misusers of language.' Coleridge. 2. (Law) Unlawful use of a right; use in excess of, or varying from, one's right. Bouvier.
Found on http://www.encyclo.co.uk/webster/M/82

Misuser

• (n.) Unlawful use of a right; use in excess of, or varying from, one`s right. • (n.) One who misuses.
Found on http://thinkexist.com/dictionary/meaning/misuser/
No exact match found