zwitterion

¹ American  

[tsvit-er-ahy-uhn] / ˈtsvɪt ərˌaɪ ən /

noun

Physical Chemistry.

1. an ion with both a positive and a negative charge.

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zwitterion ² American  

[tsvi-ter-ahy-uhn, -ahy-ahn, zwi-] / ˈtsvɪ tərˌaɪ ən, -aɪˌɑn, ˈzwɪ- /

noun

• zwitterions
  plural

1. Chemistry. a molecule that has an equal number of positive and negative charges.

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zwitterion British  

/ ˈtsvɪtərˌaɪən /

noun

1. chem an ion that carries both a positive and a negative charge

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Other Word Forms

Derived Forms

• zwitterionic
  adjective

Inflected Forms

Nouns

• zwitterions
  plural

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Etymology

Origin of zwitterion

< German Zwitterion (1897), equivalent to Zwitter hybrid, hermaphrodite + Ion ion

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