cou·lom·e·try 
(k-lŏmĭ-trē)
(k-lŏmĭ-trē)n.
An analytical method for determining the amount of a substance, such as water, released during electrolysis by measuring the number of coulombs used.
[COULO(MB) + -METRY.]
cou′lo·metric (-lə-mĕtrĭk) adj.
cou′lo·metri·cal·ly adv.