| 单词 | ion |
| 释义 | ion (once / 2168 pages) n An ion is an atom or particle with a positive or negative electrical charge. Think of an ion as having a plus or minus sign. Ion is a word you are most likely to encounter in a physics or chemistry text. But you don’t have to be a chemist or physicist to understand the concept. If you had a neutral particle and you were able to remove or add an electron, then you would have you have an ion — a charged particle. Don't confuse the tiny ion with the similar word eon, which is an extremely long period of time. WORD FAMILYion: ionate, ionic, ionise, ionize, ions+/ionate: de-ionate/ionic: nonionic/ionise: ionisation, ionised, ionises, ionising/ionised: nonionised/ionize: deionize, ionization, ionized, ionizes, ionizing/ionized: nonionized USAGE EXAMPLESMaybe there’s something to the idea that all those water-generated negative ions boost our mood and creativity. Seattle Times(Dec 28, 2016) The appeal of a lithium ion is its small size. Washington Post(Dec 19, 2016) Like touching a doorknob, the metal bristles will produce small discharges and generate charged ions in the air, relieving the clothes of their charge. Time(Dec 15, 2016) n a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons Hypo|Hyper anion a negatively charged ion cationa positively charged ion hydrogen iona positively charged atom of hydrogen; that is to say, a normal hydrogen atomic nucleus diazoniumthe univalent cation R-N:N- (where R is an aromatic hydrocarbon); found in salts that are used in manufacturing azo dyes hydroxide ion, hydroxyl ionthe anion OH having one oxygen and one hydrogen atom superoxide, superoxide anionthe univalent anion O2- particle, subatomic particle a body having finite mass and internal structure but negligible dimensions |
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