a common cyprinid, Carassius carassius, that closely resembles the wild form of goldfish, occurring in streams in most parts of Europe and northern Asia.
Origin: 1755–65; earlier crusion, prob. < LG (with pl. ending -en interpreted as sing.) Krunsch, Kruutsch, MLG Karûsse (cf. D Karuts, G Karausche), perh. ult. < L coracīnus < Gk korakînos a fish of the Nile
[kroo-shuh
n] 