'Kleptomaniac' definitions:

Definition of 'kleptomaniac'

(from WordNet)
noun
Someone with an irrational urge to steal in the absence of an economic motive

Definition of 'Kleptomaniac'

From: GCIDE
  • Kleptomaniac \Klep`to*ma"ni*ac\, n. A person affected with kleptomania. [1913 Webster]