noun.
A freshwater cyprinid fish (Scardinius erythrophthalmus) native to Eurasia, having a silvery or yellowish-green body with red fins.
The Century Dictionary and Cyclopedia
Another spelling of rud.
noun.
The redeye, a cyprinoid fish of Europe, Leuciscus or Scardinius erythrophthalmus.
the GNU version of the Collaborative International Dictionary of English
noun.
A fresh-water European fish of the Carp family (Leuciscus erythrophthalmus). It is about the size and shape of the roach, but it has the dorsal fin farther back, a stouter body, and red irises. Called also redeye, roud, finscale, and shallow. A blue variety is called azurine, or blue roach.