The Collaborative International Dictionary of English v.0.48:

Dungaree \Dun`ga*ree"\, n.
   1. A coarse kind of unbleached cotton fabric; blue denim.
      [Written also dungari.] [India]
      [1913 Webster]

   2. pl. Trousers, overalls or similar work clothes made of
      blue denim.
      [PJC]

   3. pl. Same as blue jeans.
      [PJC]

WordNet (r) 3.0 (2006):

dungaree
    n 1: a coarse durable twill-weave cotton fabric [syn: denim,
         dungaree, jean]