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TOEFL BNC: 6303 COCA: 10273

ion

Word family 
Related topics: Chemistry, Physics
i·on /ˈaɪən $ ˈaɪən, ˈaɪɑːn/ noun [countableC] technical   → iron
HCHPan atom which has been given a positive or negative force by adding or taking away an electron 离子 → proton
Examples from the Corpus
ion• A commercial filtering medium now on the market combines activated carbon and an ion exchange resin.• The cliff top turf was bright with thrift and sea camp ion.• Generally, one cupric ion complexes with four to six peptide linkages.• However, such secretions also contain important ions which are essential for the normal functioning of the body.• The result is an excluded volume behind the target atom into which no ions penetrate.• That blast of sodium ions entering the neuron is the impulse starting.• Typically, sodium ions are excluded and potassium ions are hoarded.• It only works in the direction in which it's throwing the ions.
-ion /ən/ suffix [in nouns]  
DO something/TAKE ACTIONthe act, state, or result of doing something 行为；状态；〔行动的〕结果
 the completion of the task (=act of finishing it)
任务完成
 his election (=he was elected) to the post
他当选该职位
 Young children demand a lot of attention.
幼儿需要很多关注。
Examples from the Corpus
-ion• an election• complete exhaustion
Origin ion
(1800-1900) Greek present participle of ienai “to go”
 -ion
Old French Latin -io
i·on noun-ion suffix
Chinese
Syllable
Corpus

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