兩性離子

两性离子
liǎngxìnglízǐ
(chemistry) zwitterion

CEDICT

chemistry

Entry Composition

1 兩性 liǎngxìng
  1. male and female
  2. both types (acid and alkaline, positive and negative etc)
  3. (chemistry) amphoteric
2 離子 lízǐ ion