Akademik

crucian carp
noun
European carp closely resembling wild goldfish
• Syn: ↑Carassius carassius, ↑Carassius vulgaris
• Hypernyms: ↑cyprinid, ↑cyprinid fish
• Member Holonyms: ↑Carassius, ↑genus Carassius

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\\ˈkrüshən-\ noun also crucian (-s)
Etymology: modification of Low German karuse, kruske (from Middle Low German karuske, karusse) or Frisian krūsken both from Lithuanian karušis, karõsas; akin to Russian karas' crucian carp, Polish karaś, and perhaps to Sanskrit kilāsa spotted, leprous
: a European carp (Carassius vulgaris syn. C. carassius)

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/krooh"sheuhn/
a common cyprinid, Carassius carassius, that closely resembles the wild form of goldfish, occurring in streams in most parts of Europe and northern Asia.
[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 coracinus < Gk korakînos a fish of the Nile]

Useful english dictionary. 2012.