'hairpiece' definitions:

Definition of 'hairpiece'

From: WordNet
noun
A covering or bunch of human or artificial hair used for disguise or adornment [syn: hairpiece, false hair, postiche]

Definition of 'hairpiece'

From: GCIDE
  • hairpiece \hair"piece`\ n. a covering or bunch of human or artificial hair used for disguise or adornment; a toupee.
  • Syn: false hair, postiche, toupee. [WordNet 1.5]