名詞 anesthetic:

1. a drug that causes temporary loss of bodily sensations
   同義詞：anaesthetic, anesthetic agent, anaesthetic agent

形容詞 anesthetic:

1. characterized by insensibility
   同義詞：anaesthetic

1. A gaseous anesthetic, such as nitrous oxide.
   氣體麻醉劑一種氣態(tài)的麻醉劑，如二氧化氮

anesthetic 也作 an.aes.thet.ic

adj.（形容詞）
Relating to or resembling anesthesia.
麻醉的：與麻醉有關(guān)的或類似麻醉的
Causing anesthesia.
引起麻醉的
Insensitive.
無感覺的
n.（名詞）
An agent that causes loss of sensation with or without the loss of consciousness.
麻醉劑：一種導(dǎo)致感覺缺失但知覺或有或無的藥劑
Something likened to this in effect:
麻醉品：在效果上與此相似的事物：
例句：
Some people feel that television becomes an anesthetic for the mind after too many hours of steady viewing.
一些人感覺在持續(xù)觀看電視數(shù)小時后電視會成為大腦的麻醉品

來源：
From Greek anaisthôtos [without feeling]
源自 希臘語 anaisthôtos [無感覺]
an- [without] * see a-
an- [無] *參見 a-
aisthôtos [perceptible] from aisthanesthai [to feel] * see anesthesia
aisthôtos [可感覺到的] 源自 aisthanesthai [感覺] *參見 anesthesia

【引伸】
an.esthet.ically
adv.（副詞）