两性离子 liǎngxìnglízǐ zwitterion Origin Definitions Defs Strokes Stroke Words Sentences Sents 两性 兩性 liǎngxìng amphoteric (chemistry) capable of reacting as both an acid and a base离子 離子 lízǐ noun ion An atom or group of atoms that has gained or lost one or more electrons and thus carries an electrical charge.