神经学 =neur+ology neutralize v

使无效；中和 =neutr+alize neutron n

中子 =neutr+on nexus

n(看法等的)联系，连结 =nex+us ~connect nib n 钢笔尖 nibble v

一点点地咬，慢慢啃 nice a 精密的 nicety n

准确，精确 nick n

小伤口，刻痕 nicotine n

尼古丁 =nicot+ine nightmare n

恶梦；可怕的事 =night+mare nil n

无，零 Latin nil was a contracted form of nihil ‘nothing’ (source of English nihilism) nip v 小口啜饮 nitpick v

挑剔，吹毛求疵 nocturnal

a

夜晚的，夜间发生的 =noct+urnal noisome a

恶臭的；令人不快的 =nois+some nomad n

流浪者；游牧部落的人 =nom+ad ~economy nomadic a

游牧的 =nomad+ic nominal a

名义上的，有名无实的 =nom+in+al nominate v

提名；任命，指定 =nom+in+ate nonchalance n

冷漠，缺少关怀；沉着 =non+chal+ance This goes back ultimately to Latin

calēre ‘be hot’ (a

relative of English calorie and cauldron). nonchalant a

冷漠的 =non+chal+ant noncommittal a

态度暖味的；不承担义务的 =non+commit+al nonconformist adj/n

不遵照传统生活的(人) =non+conformist nonentity n

不重要之人或事 =non+entity nonflammable a

不易燃的 =non+flamm+able nonplus v 使窘困迷惑 n

迷惑，窘境 =non+plus ~plural nonporous a

无孔的，不渗透的 =non+porous nonradioactive a

非放射性的 =non+radio+active nonsensical a

荒唐的，无意义的 =non+sens+ical nonthreatening a

不威胁的 =non+threaten+ing nonviable a

无法生存的 =non+viable norm n 规范，准则 nostalgia n

怀旧之情 =nost+alg+ia Greek nostos ‘homecoming’ and algos ‘pain, grief’ (as in analgesic and neuralgia) nostrum