a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons
百科解释
An ion is an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving the atom a net positive or negative electrical charge.
详细百科解释
其他语种释义
ionとは意味:ion n. 〔物理化学〕 イオン. 【動詞+】 ◆Ions are negatively or positively charged. イオンは負の電気か正の電気を帯びている. 【形容詞 名詞+】 ◆a negative ion 陰イオン ◆an oxygen ion 酸素イオン.