Noun genus spinus has 1 sense
  1. Spinus, genus Spinus - in some classifications considered a subgenus of Carduelis: siskins and New World goldfinches
    --1 is a kind of bird genus
    --1 is a member of Fringillidae, family Fringillidae
    --1 has members:
     New world goldfinch, goldfinch, yellowbird, Spinus tristis; pine siskin, pine finch, Spinus pinus
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