(Science: zoology) A small green and yellow European finch (Spinus spinus, or Carduelis spinus); called also aberdevine.
The American pinefinch (S. Pinus); called also pine siskin. See Pinefinch.
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.
Origin: Dan. Sisgen; cf. Sw. Siska, G. Zeisig, D. Sijsje; of Slav. Origin; cf. Pol. Czy.