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iodometry

n. (context chemistry English) An analytical technique that uses the sudden disappearance (or appearance) of iodine to mark the end of a redox titration

Wikipedia
Iodometry

Iodometry, also known as iodometric titration, is a method of volumetric chemical analysis, a redox titration where the appearance or disappearance of elementary iodine indicates the end point.

Note that iodometry involves indirect titration of iodine liberated by reaction with the analyte , whereas iodimetry involves direct titration using iodine as the titrant.