. "relatively weak attraction between neutral atoms and molecules arising from polarization induced in each particle by the presence of other particles"@en-us . . . "110780413"@en-us . . . "0"^^ . "van der Waal's forces"^^ . "11522815-n"^^ . . "111522815"^^ . . . "van der Waal's forces"@en-us . . "0"^^ .