A stingray is a type of large flat fish with a long tail which it can use as a weapon.
stingray in British English
(ˈstɪŋˌreɪ)
noun
any ray of the family Dasyatidae, having a whiplike tail bearing a serrated venomous spine capable of inflicting painful weals on humans
stingray in American English
(ˈstɪŋˌreɪ)
US
noun
any of a family (Dasyatidae, order Myliobatiformes) of large rays having a long,whiplike tail with one or more usually poisonous spines that can inflict painful wounds