Definify.com

Webster 1913 Edition

Ringbill

Ring′billˊ

,

Noun.

(Zool.)

The ring-necked scaup duck; – called also

ring-billed blackhead

. See

.

Definition 2025

ringbill

ringbill

English

Noun

ringbill ‎(plural ringbills)

Aythya collaris, a diving duck of North America with a white band around the bill.