Any of various jellyfishes of the class Cubozoa, having a cube-shaped medusa and a venomous, sometimes fatal sting.
任一种立方水母纲的水母，有立方形的身体和有毒，有时甚至能致命的螫刺。
3
Coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes.