Titration

[Sarah]

a precise method of adding base to acid (or the inverse)so that one may accurately determine how much of one it takes to neutralize the other.

[Becky]

[Prenetration] of the females [mammary glands] (also Titration (aka titrimetry)1 is a common laboratory method of quantitative chemical analysis that is used to determine the unknown concentration of a known [reactant])

[Marquetta]

a method of finding exactly how much of a substance there is in a solution by gradually adding measured amounts of another substance that reacts to it in a known way, for example by causing a colour change