Word · Frequency #6303
ions
离子
ions is the plural of ion.
an atom or group of atoms that has an electric charge because it has lost or gained electrons
- 1.
An atom or group of atoms bearing an electrical charge, such as the sodium and chlorine atoms in a salt solution.
带电荷的原子或原子团,如盐溶液中的钠原子和氯原子
- 2.
a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons
带电的粒子(正或负)；失去或得到一个或多个电子的原子、分子或基团
带电荷的原子或原子团,如盐溶液中的钠原子和氯原子；带电的粒子(正或负)；失去或得到一个或多个电子的原子、分子或基团；离子；[化] 离子
In use
When salt dissolves in water, it breaks into positive and negative ions.
The battery works by moving ions from one electrode to the other.
Each ion in the solution carries either a positive or a negative charge.
positive/negative ion
离子可带正电或负电。
A positive ion is called a cation.
正离子被称为阳离子。
ion exchange
常见于化学处理过程。
Water softeners use ion exchange to remove minerals.
软水器利用离子交换去除矿物质。
ion formed from
Connections
Collocations
- positive ion
- 正离子
- Positive ions are attracted to the negative electrode.正离子被吸引到负极。
- negative ion
- 负离子
- Negative ions can improve air quality.负离子可以改善空气质量。
- ion channel
- 离子通道
- Ion channels play a key role in nerve signal transmission.离子通道在神经信号传递中起关键作用。
- ion exchange
- 离子交换
- Ion exchange is used to soften hard water.离子交换用于软化硬水。
- ion beam
- 离子束
- The ion beam is used for precise material etching.离子束用于精确的材料蚀刻。
- ion implantation
Learner notes
Memory Tip
音似爱嗯，想象一个带电原子开着电。
Context & Register
register: formal; contexts: chemistry, physics, biology; note_zh: 离子是科学术语，多用于化学、物理等科学领域。
Grammar Note
复数形式直接加 -s：ions。
Pronunciation & Spelling
Lion and scion rhyme exactly with ion (same stressed vowel /aɪ/ and ending /ən/). Anion and cation share the same spelling ending but are pronounced with initial stress and do not rhyme with ion.
Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.