spinner dolphin
noun
1- a dolphin of warm seas which has a long slender beak, noted for rotating several times while leaping into the air长嘴海豚。
1.1
- Genus Stenella, family Delphinidae: two species, in particular S. longirostris.原海豚属, 海豚科：2种, 尤指长嘴海豚。