Source : Webster's Revised Unabridged Dictionary (1913)

Titration \Ti*tra"tion\, n. (Chem.)
   The act or process of titrating; a substance obtained by
   titrating.

Source : WordNet®

titration
     n : a measured amount of a solution of unknown concentration is
         added to a known volume of a second solution until the
         reaction between them is just complete; the concentration
         of the unknown solution (the titer) can them be
         calculated