Chem., Physiol. the process of finding out how much of a certain substance is contained in a known volume of a solution by measuring volumetrically how much of a standard solution is required to produce a given reaction
See titration in American Heritage Dictionary 4
(tī-trāˈshən)
noun
The process, operation, or method of determining the concentration of a substance in solution by adding to it a standard reagent of known concentration in carefully measured amounts until a reaction of definite and known proportion is completed, as shown by a color change or by electrical measurement, and then calculating the unknown concentration.