The Collaborative International Dictionary of English v.0.48:

blended \blended\ adj.
   1. combined or mixed together so that the constituent parts
      are indistinguishable. Antonym of unblended. [Narrower
      terms: alloyed; emulsified; homogenized]

   Syn: mingled, commingled.
        [WordNet 1.5]

   2. homogeneous heterogeneous
      [WordNet 1.5]