Definition of "greenfinch"

Any of five distinct species of bird formerly within the genus Carduelis, now making up genus Chloris (Cuvier):

1. the European greenfinch, a common Old World finch, Carduelis chloris, now Chloris chloris, that is mainly green with yellow in the wings and tail.  examples

2. the black-headed greenfinch, Carduelis ambigua, now Chloris ambigua  examples

3. the Oriental greenfinch, Carduelis sinica, now Chloris sinica  examples

4. the Vietnam greenfinch, Carduelis monguilloti, now Chloris monguilloti  examples

5. the yellow-breasted greenfinch, Carduelis spinoides, now Chloris spinoides  examples