Metric

met′rik, adj. quantitative.— adj. Met′rical , pertaining to measurement.— n.pl. Met′rics , the theory of measurement.— ns. Met′rograph , an apparatus for registering the speed of a railway-train and the places and duration of stops; Metrol′ogy , the science of weights and measures; Met′ronome , an instrument like an inverted pendulum which measures musical time.— adj. Metronom′ic .— n. Metron′omy , measurement of time by a metronome.