What do a.m. and p.m. stand for?

polar molecule

a molecule in which the centroid of the positive charges is different from the centroid of the negative charges.
Also called dipole. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for polar molecule
  • Non-ionizing radiation create an electric field, and water is a polar molecule.
  • It's a polar molecule, meaning that each end of it has a different electrical charge that attracts and repels different materials.
  • Water is a polar molecule-that is it has a negatively charged end and a positively charged end.
  • The crystallized molecular ions will be used to study the cold ion-polar molecule reactions.
  • Sugar is a polar molecule since it is dissolved in water, a polar molecule.
  • All these methods utilize ethylene glycol, a highly polar molecule, as the absorbed phase.
Contemporary definitions for polar molecule

an asymmetric molecule with non-uniform positive and negative charges; also called dipole


A polar molecule has a partial positive charge in one part of the molecule and complementary negative charge in another part.'s 21st Century Lexicon
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