词根:ne(na, no, n) = not 不
来源于古英语或拉丁语ne,亦作 n- ( 它在元音前的变体 ) 意为not,表示否定。其变形有na, no,n等。
同源词:
1. annul [使接近没有an<ad(=to, near)+n<ne(=not)+ul(=any)]
vt. 宣布…无效;废止,取消
annulment n. 取消,废止
Failure to arrive to work on time will annul your employment contract. 如果你不能准时上班,将被解除聘用合同。
2. nefarious
adj. 恶毒的,邪恶的 *fa(=say)
3. nescience
n. 无知 *sci(=know)
nescient adj. 无知的
4. neuter
adj. 中性的;(植物)无性的;生殖器发育不全的;不生育的
n.[语]中性名词;中性;生殖器发育不全的动物;阉割过的动物
v. 阉割
*uter(=whether of the two)
neutered tomcat 阉割过的雄猫
5. neutral
adj.中立的;中立国的;中性的;模糊的;略带灰色的;(齿轮)空档的
n. 中立者;中立国;(齿轮)空档 *utr<uter(=whether of the two)
neutral nations 中立国
neutral tints 暗淡色;灰色
6. neutrality
n. 中立状态 *utr<uter(=whether of the two)
armed neutrality 武装中立
strict neutrality 严榕的中立
7. neutralize
v. 使中立;使无效;使中和 *utr<uter(=whether of the two)
neutralize a poison 中和毒素
8. neutron
n. 中子
9. naught/nought
n. 零;无 *ught(=thing),na,no<ne(=not)
come to nought / naught 归于失败
point nought / naught one 零点零一(0.01)
词根词缀:nano- [NA noh], nan-, nanno-, -nania
【来源及含义】Greek: dwarf, dwarfish; pygmy; "little old man;" very small or tiny; also, a decimal prefix used in the international metric system for measurements
【相关描述】This prefix is used in the metric [decimal] system as billionth [U.S.] and thousand-millionth [U.K.], 10-9 [0.000 000 001]. The metric symbol for nano- is n.
【相关词根词缀】Related "few, small, less, little" word units:
micro-;
mini-;
mio-, meio-;
oligo-, olig-.
Related "metric" families:
yotta;
zetta;
exa;
peta;
tera;
giga;
mega;
kilo;
hecto;
deka;
deci;
centi;
milli;
micro;
pico;
femto;
atto;
zepto;
yocto.
【同源单词】bionanotechnology, nanandrous, nanism, nanization, nannandrous, nannofossil