n. a freshwater fish, Hiodon tergisus, related to the goldeye and found in the Lower Great Lakes.
See also: goldeye
- 1866  A fish of another family, which is exceedingly abundant in the Upper Lakes, and is becoming in many other parts of the country, is the so-called "Lake herring," otherwise Shiner, Moon-eye, or Shad-waiter.
- 1958  The mooneye does not smoke well and is of little commercial value.