beaked whale
noun
1- a medium-sized whale with elongated jaws that form a beak, typically showing marked differences in size and body form between the sexes剑吻鲸。
1.1
- Family Ziphiidae: four genera and several species, including the bottlenose whales.剑吻鲸科:4属, 数种, 包括巨齿鲸。