'metrication' definitions:

Definition of 'metrication'

From: WordNet
noun
The act of changing from imperial units of measurement to metric units: meters, grams, seconds [syn: metrification, metrication]

Definition of 'metrication'

From: GCIDE
  • metrication \met`ri*ca"tion\ (m[e^]t`r[i^]*k[=a]"sh[u^]n), n. The act or process of converting the standard system of units of a country to those of the metric system; metrification; as, Great Britain has completed its metrification, but the United States still resists complete change. [PJC]