ablation
n.
early 15c., from Latin ablationem (nominative ablatio), "a taking away," noun of action from past participle stem of auferre "to carry away," from ab- "off" (see ab-) + ferre (past participle latum; see oblate) "to bear."
〔李〕[ab-=away离开；lat=to carry拿；-ion n.=the act表行为→“carrying away (some part of the body) 取走（身体某部分）”→] n. removal of any part of body in surgery外科切除术