The Collaborative International Dictionary of English v.0.48:

Scale \Scale\, v. t. [imp. & p. p. Scaled; p. pr. & vb. n.
   Scaling.]
   To weigh or measure according to a scale; to measure; also,
   to grade or vary according to a scale or system.
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         Scaling his present bearing with his past. --Shak.
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   To scale a debt, wages, etc. or To scale down a debt,
   wages, etc., to reduce a debt, etc., according to a fixed
      ratio or scale. [U.S.]
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The Collaborative International Dictionary of English v.0.48:

Scaled \Scaled\, a.
   1. Covered with scales, or scalelike structures; -- said of a
      fish, a reptile, a moth, etc.
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   2. Without scales, or with the scales removed; as, scaled
      herring.
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   3. (Zool.) Having feathers which in form, color, or
      arrangement somewhat resemble scales; as, the scaled dove.
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   Scaled dove (Zool.), any American dove of the genus
      Scardafella. Its colored feather tips resemble scales.
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WordNet (r) 3.0 (2006):

scaled
    adj 1: having the body covered or partially covered with thin
           horny plates, as some fish and reptiles [syn: scaly,
           scaley, scaled]
    2: (used of armor) having overlapping metal plates attached to a
       leather backing