underwing
1 of 1noun/ˈʌndərwɪŋ/
Forms:underwings
1
the feathers on the underside of a bird's wing, which can have distinctive patterns and colors that are often visible in flight
2
moth having dull forewings and brightly colored hind wings
the feathers on the underside of a bird's wing, which can have distinctive patterns and colors that are often visible in flight
moth having dull forewings and brightly colored hind wings