英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

catalyst    音标拼音: [k'ætələst] [k'ætəlɪst]
n. 触媒剂

触媒剂

catalyst
触媒

catalyst
n 1: (chemistry) a substance that initiates or accelerates a
chemical reaction without itself being affected [synonym:
{catalyst}, {accelerator}] [ant: {anticatalyst}]
2: something that causes an important event to happen; "the
invasion acted as a catalyst to unite the country"

catalyst \catalyst\ n.
1. (Chem.) a substance that initiates or accelerates a
chemical reaction without itself being affected; as,
thousands of enzymes serve in concert as calaysts to
produce the sequence of reactions we call "life"; the
industrial production of cheap ammonia depended on finding
a good catalyst.
[WordNet 1.5]

2. something that serves as a precipitating occasion for an
event; as, the invasion acted as a catalyst to unite the
country.

Note: A catalyst is never the main cause of an event, but may
serve to hasten events for which the underlying causes
are present prior to the appearance or occurrence of
the catalyst.
[WordNet 1.5 PJC]

3. something or someone that causes events to happen with
itself being changed.
[PJC]

75 Moby Thesaurus words for "catalyst":
agent, agent provocateur, agitator, agitprop, alterant, alterative,
alterer, author, begetter, beginner, catalysis, catalytic agent,
causer, creator, decay, demagogue, dialysis, dissociation,
effector, engenderer, exciter, father, ferment, firebrand, fission,
fomenter, generator, goad, hydrolysis, hydrolyst, impetus, impulse,
incendiary, incentive, incitation, incitement, inciter, inflamer,
innovationist, innovator, inspirer, instigator, introducer, leaven,
maker, mischief-maker, modificator, modifier, mother, motivation,
mover, originator, parent, photolysis, precursor, prime mover,
primum mobile, producer, provocateur, provoker, rabble-rouser,
ringleader, rouser, seditionary, seditionist, sire, splitting,
spur, stimulant, thermolysis, transformer, transmogrifier,
troublemaker, urger, yeast


请选择你想看的字典辞典：
单词字典翻译
catalyst查看　catalyst　在百度字典中的解释百度英翻中〔查看〕
catalyst查看　catalyst　在Google字典中的解释Google英翻中〔查看〕
catalyst查看　catalyst　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:







中文字典-英文字典  2005-2009