资料来源 : Webster's Revised Unabridged Dictionary (1913)

Extirpable \Ex*tir"pa*ble\, a.
   Capable of being extirpated or eradicated; as, an extirpable
   plant. --Evelyn.

资料来源 : WordNet®

extirpable
     adj : capable of being totally destroyed or wiped out [syn: {exterminable}]