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/ˈtsvɪtəɹ.aɪən/ · noun
(chemistry) A molecule, such as an amino acid, that carries both a positive and a negative charge..
Use zwitterion when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Zwitterion means (chemistry) A molecule, such as an amino acid, that carries both a positive and a negative charge..
Common synonyms include inner salt, dipolar ion.
The opposite depends on the specific sense.
Use zwitterion where its definition matches the intended context.
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