disgregation

noun2

1. •
   Separation; scattering.

   • If the first one is called before the second one, very few disgregations will be performed on the text, since the concepts initially have no associated list of attributes. — 2006
2. •
   (no longer used, historical) A measure of the separation of the particles of a system; an early formulation of entropy.

   • The gas, however, may experience the same changes of volume and disgregation in another manner. — 1880