Source : Webster's Revised Unabridged Dictionary (1913)

Quantification \Quan`ti*fi*ca"tion\, n. [See {Quantity}.]
   Modification by a reference to quantity; the introduction of
   the element of quantity.

         The quantification of the predicate belongs in part to
         Sir William Hamilton; viz., in its extension to
         negative propositions.                   --De Quincey.

Source : WordNet®

quantification
     n 1: a limitation imposed on the variables of a proposition (as
          by the quantifiers `some' or `all' or `no')
     2: the act of discovering or expressing the quantity of
        something