underwing (English, noun)
expansion: underwing (plural underwings)
Senses:
glosses: A hind wing on an insect.
glosses: A member of the genus Catocala, a nocturnal moth which usually has brightly coloured underwings.
topics: biology
natural-sciences
ornithology
glosses: The underside of a bird's wing.
Forms:
form: underwings
tags: plural