The Collaborative International Dictionary of English v.0.48:

Metric \Met"ric\ (m[e^]t"r[i^]k), a. [L. metricus, Gr. ?: cf. F.
   m['e]trique. See Meter rhythm.]
   1. Relating to measurement; involving, or proceeding by,
      measurement.
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   2. Of or pertaining to the meter as a standard of
      measurement; of or pertaining to the decimal system of
      measurement of which a meter is the unit; as, the metric
      system; a metric measurement.
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   Metric analysis (Chem.), analysis by volume; volumetric
      analysis.

   Metric system, See metric system in the vocabulary.
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