Definition of mooneye in US English:

mooneye

noun

  • A herring-like freshwater fish with large eyes, found exclusively in central and eastern North America.

    Genus Hiodon, family Hiodontidae: two species, the goldeye (H. alosoides) and the larger-eyed mooneye (H. tergisus)

    • ‘Mooneyes prefer swift, clean water and will not tolerate silted conditions’

Pronunciation

mooneye

/ˈmo͞onī/