van der Waals force
n.
A weak attractive force between atoms or nonpolar molecules caused by a temporary change in dipole moment arising from a brief shift of orbital electrons to one side of one atom or molecule, creating a similar shift in adjacent atoms or molecules.

[TahlilGaran] American Dictionary ▲

van der waals force
[After Johannes Diderikvan der Waals (1837-1923), Dutch physicist.]

[TahlilGaran] American Dictionary ▲