Crucian carp \Cru"cian carp`\ (-shan k?rp`). [Cf. Sw. karussa, G. karausche, F. carousse, -assin, corassin, LL. coracinus, Gr. ????? a sort of fish.] (Zo["o]l.) A kind of European carp ({Carasius vulgaris}), inferior to the common carp; -- called also {German carp}. Note: The gibel or Prussian carp is now generally considered a variety of the crucian carp, or perhaps a hybrid between it and the common carp.