Definition of gadwall in US English:

gadwall

noun

  • A brownish-gray freshwater duck found across Eurasia and North America.

    Anas strepera, family Anatidae

    • ‘Beyond teal, his hunters returned with mixed straps that included shovelers, gadwalls and mottled ducks.’
    • ‘With their drab plumage, it is not unusual to mistake a gadwall for a hen mallard at a distance.’
    • ‘During teal season, hunters must be careful not to shoot the occasional shoveler, pintail or gadwall flying alone, which provide no size reference, or rolling with a squadron of teal.’
    • ‘On the sounds, widgeon, teal, gadwalls, pintails and black ducks concentrate following a freeze.’
    • ‘Other migratory birds observed in the shallow waters were bar headed geese, open bill storks, northern pintails, gadwalls, curlews, black tailed godwits, spoonbills, green shanks, red shanks and so on.’

Origin

Mid 17th century: of unknown origin.

Pronunciation

gadwall

/ˈɡadwôl//ˈɡædwɔl/