| dipolar | Having two poles, as a magnetic bar. Origin: Pre. Di- + polar. Cf. Bipolar. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| dipolar buffer | Buffer whose structure can include opposite charges. Synonym: dipolar buffer. (05 Mar 2000) |
| dipolar ions | Ion's possessing both a negative charge and a positive charge, each localised at a different point in the molecule, which thus has both positive and negative "poles"; amino acids are the most notable dipolar ion's, containing a positively charged NH3+ group and a negatively charged COO- group at neutral pH. Synonym: amphions, zwitterions. (05 Mar 2000) |