The Collaborative International Dictionary of English v.0.48:

Partiality \Par`ti*al"i*ty\ (?; 277), n. [Cf. F. partialit['e].]
   1. The quality or state of being partial; inclination to
      favor one party, or one side of a question, more than the
      other; undue bias of mind.
      [1913 Webster]

   2. A predilection or inclination to one thing rather than to
      others; special taste or liking; as, a partiality for
      poetry or painting. --Roget.
      [1913 Webster]

WordNet (r) 3.0 (2006):

partiality
    n 1: a predisposition to like something; "he had a fondness for
         whiskey" [syn: fondness, fancy, partiality]
    2: an inclination to favor one group or view or opinion over
       alternatives [syn: partiality, partisanship] [ant:
       impartiality, nonpartisanship]