Metry is defined as having to do with measurement.
An example of metry is biometry, which is a calculation of a likely human life span.
the process, art, or science of measuring: bathymetry, psychometry
Origin of -metryClassical Greek -metria from metron, measure
Process or science of measuring: isometry.
Origin of -metryGreek -metriā from metron measure ; see mē-2 in Indo-European roots.