a small freshwater fish of the minnow family, typically living in running water.
Leuciscus and numerous other genera, family Cyprinidae: several species, including the longfin dace (Agosia chrysogaster) of western North America and the widely distributed L. leuciscus of northern Eurasia.
– ORIGIN late Middle English : from Old Frenchdars (see dart).
EnglishOxford New American Dictionary
