Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
A mathematical quantity characteristic of a dipole unit equal to the product of one of its charges times the vector distance separating the charges. The dipole moment μ associated with a distribution of
()electric charges qi is given by where r i is the vector to the charge qi. For systems with a net charge (for example, positive), the origin is taken at the mean position of the positive charges (and vice versa). Dipole moments have the dimensions coulomb-meters. Molecular dipole moments were previously expressed in debye units, where 1 debye = 3.336 × 10-30 C · m. See Dipole
dipole moment[′dī‚pōl ‚mō·mənt]
The vector sum of the bond moments in a molecule, a measure of the polarity of the molecule.