define the enistropy

Dear Student, 
I think it should be anisotropy instead of enisotropy. 
Anisotropy: In some substances the properties like electrical conductance, refractive index and thermal expansion have different values in different directions. This property is called anisotropy and the substances showing this property are called anisotropic. Crystalline substances are anisotropic in nature because while making arrangements in different directions, different types of particles fall on the way.
Regards.