underwing

2 entries found for underwing.
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underwing[1,noun] underwing[2,adjective]

Main Entry: ¹un·der·wing
Pronunciation: '&n-d&r-"wi[ng]
Function: noun
1 : one of the posterior wings of an insect
2 : any of various noctuid moths (especially genus Catocala) that have the hind wings banded with contrasting colors (as red and black) -- called also underwing moth
3 : the underside of a bird's wing