n.

1. 雪貂，白鼬[C]

vt.

1. 用雪貂猎取；把（猎物等）逐出
2. 【口】搜寻；查获[（+out）]
   At last I managed to ferret out the truth.

   我终于设法查明了真相。

   I finally ferreted out the lost socks.

   我终于找出了丢失的袜子。

vi.

1. 用雪貂狩猎
2. 搜索
   She is ferreting about among old papers for the letter.

   她在一堆旧文件里搜寻那封信。

n.

1. a domesticated albino or brown polecat, used for catching rabbits. [Mustela furo.]
2. an assiduous search.

v.

1. hunt with ferrets.
2. search for something in a place or container.
   ▸ (ferret something out) investigate something assiduously.