DefinitionAn <ELECTRIC POLARIZABILITY OF MOLECULE> is a <Property> that is the ability to form instantaneous dipoles, and it determines the dynamical response of a bound system to external fields, and provides insight into a molecule's internal structure. In a solid, polarizability is defined as the dipole moment per unit volume of the crystal cell. It is calculated as alpha_ij = delta p_i/delta E_j where p_i is the cartesian component along the i-axis of the electric dipole moment induced by the applied <ELECTRIC FIELD STRENGTH> acting on the molecule, and E_j is the component along the j_axis of this <ELECTRIC FIELD STRENGTH>