Source : Webster's Revised Unabridged Dictionary (1913)

Siskin \Sis"kin\, n. [Dan. sisgen; cf. Sw. siska, G. zeisig, D.
   sijsje; of Slav. origin; cf. Pol. czy?.] (Zo["o]l.)
   (a) A small green and yellow European finch ({Spinus spinus},
       or {Carduelis spinus}); -- called also {aberdevine}.
   (b) The American pinefinch ({S. pinus}); -- called also {pine
       siskin}. See {Pinefinch}.

   Note: The name is applied also to several other related
         species found in Asia and South America.

   {Siskin green}, a delicate shade of yellowish green, as in
      the mineral torbernite.

Aber-de-vine \Ab`er-de-vine"\, n. (Zo["o]l.)
   The European siskin ({Carduelis spinus}), a small green and
   yellow finch, related to the goldfinch.

Source : WordNet®

Carduelis spinus
     n : small sharp-billed yellow-and-black Eurasian finch [syn: {siskin}]