Rūdd, n.

noun

n. [A-S. rud, red. See supra.] (Ichth.) A fresh-water European fish of the carp family; Leuciscus erythrophthalmus; red-eye. It is about the size and shape of the roach, with which it is often confounded, but it has the dorsal fin further back, a stouter body, and red irides.

An engraved illustration of a fish shown in profile.
Rudd (L. erythrophthalmus).