A scyphozoan jellyfish of the genus Cyanea, especially the largest jellyfish, C. arctica, which usually grows to more than 3.6 meters (12 feet) wide and has tentacles over 30 meters (100 feet) long.

• 海蜇：一种霞水母属真水母，尤指最大型的水母北极水母，通常可以长到3.；6米(12英尺）宽，触须能够达到30多米(100英尺）长