• # Metric

#### Pronunciation

• IPA: /ˈmɛt.ɹɪk/
• Hyphenation: met + ric

#### Origin

From French métrique (1864), from New Latin metricus ("pertaining to the system based on the meter"), from metrum ("a meter"); see meter.

## Full definition of metric

#### metric

1. of or relating to the metric system of measurement
2. (music) of or relating to the meter of a piece of music.
3. (mathematics, physics) of or relating to distance

#### metric

(plural metrics or metrices)
1. A measure for something; a means of deriving a quantitative measurement or approximation for otherwise qualitative phenomena (especially used in engineering)
• April 10 2011, As for the large number of official statements that Spain is safe, I think they are merely a metric of the complacency that has characterised the European crisis from the start.
• 2013-08-03, Boundary problems, Economics is a messy discipline: too fluid to be a science, too rigorous to be an art. Perhaps it is fitting that economists’ most-used metric, gross domestic product (GDP), is a tangle too. GDP measures the total value of output in an economic territory. Its apparent simplicity explains why it is scrutinised down to tenths of a percentage point every month.
2. What metric should be used for performance evaluation?
It's the most important single metric that quantifies the predictive performance.
How to measure marketing? Use these key metrics for measuring marketing effectiveness.
There is a lack of standard metrics.
3. (mathematics) A measurement of the "distance" between two points in some metric space: it is a real-valued function d(x,y) between points x and y satisfying the following properties: (1) "non-negativity": $d\left(x,y\right) \ge 0$
, (2) "identity of indiscernibles": $d\left(x,y\right) = 0 \mbox\left\{ iff \right\} x=y$, (2) "symmetry": $d\left(x,y\right) = d\left(y,x\right)$, and (3) "triangle inequality": $d\left(x,y\right) \le d\left(x,z\right) + d\left(z,y\right)$.
1. (mathematics) a metric tensor
2. Abbreviation of metric system

#### Verb

1. (transitive, aerospace, systems engineering) To measure or analyse statistical data concerning the quality or effectiveness of a process.
We need to metric the status of software documentation.
We need to metric the verification of requirements.
We need to metric the system failures.
The project manager is metricking the closure of the action items.
Customer satisfaction was metricked by the marketing department.