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[ˌænəsˈθi:zjə]

n. (术前)麻醉状态;施行麻醉,麻醉法
=anesthesia

来源于希腊语an-(无,不)和aisthesis(知觉)的复合词anaisthesia。 

拆分: an-无,不 + aesth知觉 + -esia名词词尾,医学名词  

例:
local anaesthesia 局部麻醉 
general anaesthesia 全身麻醉 
The doses used for surgical anaesthesia vary between 2 and 10mg/kg. 外科手术麻醉药的用量从每公斤2毫克到10毫克不等。 
His lecture is intended to bear down on the application of acupuncture anaesthesia in brain surgery. 他的学术报告打算重点谈针刺麻醉在脑外科方面的应用。 
Acupuncture anesthesia is rapidly gaining ground in surgical operations. 针刺麻醉在外科手术上正在得到广泛应用。