The Collaborative International Dictionary of English v.0.48:

Parr \Parr\ (p[aum]r), n. [Cf. Gael. & Ir. bradan a salmon.]
   (Zool.)
   (a) A young salmon in the stage when it has dark transverse
       bands; -- called also samlet, skegger, and
       fingerling.
   (b) A young leveret.
       [1913 Webster] Parrakeet

WordNet (r) 3.0 (2006):

Parr
    n 1: Queen of England as the 6th wife of Henry VIII (1512-1548)
         [syn: Parr, Catherine Parr]
    2: a young salmon up to 2 years old
    3: the young of various fishes