英文字典中文字典Word104.com



中文字典辭典   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   







請輸入英文單字,中文詞皆可:

catalyst    音標拼音: [k'ætələst] [k'ætəlɪst]
n. 觸媒劑

觸媒劑

catalyst
觸媒

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

請選擇你想看的字典辭典:
單詞字典翻譯
catalyst查看 catalyst 在Google字典中的解釋Google英翻中〔查看〕
catalyst查看 catalyst 在Yahoo字典中的解釋Yahoo英翻中〔查看〕





安裝中文字典英文字典查詢工具!


中文字典英文字典工具:
選擇顏色:
輸入中英文單字

































































英文字典中文字典相關資料:





中文字典-英文字典  2005-2009

|中文姓名英譯,姓名翻譯 |简体中文英文字典