metric in WordNet English dictionary

1. the rhythmic arrangement of syllables
   measured  metrical  metric 
   
2. based on the meter as a standard of measurement
   "the metric system"; "metrical equivalents"
   metric  metrical 
   

1. a system of related measures that facilitates the quantification of some particular characteristic
   system of measurement  metric 
   
2. a decimal unit of measurement of the metric system (based on meters and kilograms and seconds)
   "convert all the measurements to metric units"; "it is easier to work in metric"
   metric unit  metric 
   
3. a function of a topological space that gives, for any two points in the space, a value equal to the distance between them
   metric function  metric