electric dipole moment

American  

noun

Electricity.

1. a vector quantity associated with two equal charges of opposite sign separated by a specified distance, having magnitude equal to the product of the charge and the distance between the charges and having direction from the negative to the positive charge along the line between the charges.

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Example Sentences

The PQ symmetry addresses the strong CP problem, which asks why experiments fail to detect the tiny electric dipole moment that theory predicts for the neutron.

From Science Daily • Dec. 7, 2025

The difference between HD+ and H2+ is that HD+ has an electric dipole moment, which H2+ lacks.

From Science Daily • Feb. 27, 2024

But if more exotic particles are out there, they should pop up in the virtual clouds around electrons, causing the clouds to be asymmetric—in other words, causing an electric dipole moment.

From Scientific American • Nov. 11, 2013

The same goes for an electron with an electric dipole moment.

From Scientific American • Nov. 11, 2013

But if they exist, all these twin particles should arise as virtual phantoms in the cloud around electrons, giving it a measurable electric dipole moment.

From Scientific American • Nov. 11, 2013