单词 |
dipolar ions |
释义 |
dipolar ions di·po·lar i·onsions possessing both a negative charge and a positive charge, each localized at a different point in the molecule, which thus has both positive and negative "poles"; amino acids are the most notable dipolar ions, containing a positively charged NH3+ group and a negatively charged COO- group at neutral pH. Synonym(s): amphions, zwitterionsdi·po·lar ions (dī-pō'lăr ī'onz) Ions possessing both a negative charge and a positive charge, each localized at a different point in the molecule, which thus has both positive and negative "poles." Synonym(s): zwitterions. |
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