The Collaborative International Dictionary of English v.0.48:

Speckle \Spec"kle\, v. t. [imp. & p. p. Speckled; p. pr. & vb.
   n. Speckling.]
   To mark with small spots of a different color from that of
   the rest of the surface; to variegate with spots of a
   different color from the ground or surface.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Speckled \Spec"kled\, a.
   Marked or variegated with small spots of a different color
   from that of the rest of the surface.
   [1913 Webster]

   Speckled Indians (Ethnol.), the Pintos.

   Speckled trout. (Zool.)
   (a) The common American brook trout. See Trout.
   (b) The rainbow trout.
       [1913 Webster]

WordNet (r) 3.0 (2006):

speckled
    adj 1: having a pattern of dots [syn: dotted, flecked,
           specked, speckled, stippled]

Moby Thesaurus II by Grady Ward, 1.0:

46 Moby Thesaurus words for "speckled":
   bespangled, bespattered, bespeckled, blotched, blotchy, brindled,
   dappled, discolored, dotted, dotty, dusted, flea-bitten, flecked,
   fleckered, frecked, freckle-faced, freckled, freckly, macular,
   maculate, maculated, mottled, patchy, peppered, pocked, pockmarked,
   pocky, pointille, pointillistic, polka-dot, powdered, punctated,
   spangled, spattered, specked, speckledy, speckly, splashed,
   splattered, splotched, splotchy, spotted, spotty, sprinkled,
   stippled, studded