From The Collaborative International Dictionary of English v.0.48 [gcide]:
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.
[1913 Webster]
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.
[1913 Webster]
{Metric analysis} (Chem.), analysis by volume; volumetric
analysis.
{Metric system}, See {metric system} in the vocabulary.
[1913 Webster]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Metric system \Met"ric sys"tem\n.
A system of weights and measures originating in France, the
use of which is required by law in many countries, and
permitted in many others, including the United States; the
system is also called by its French name, {Le Syst[`e]me
International de Unit['e]s} (abbreviated SI). The principal
unit of length is the meter (see {Meter}). From this are
formed the are, the liter, the stere, the gram, etc. These
units, and others derived from them, are divided decimally,
and larger units are formed from multiples by 10, 100, 1,000,
and 10,000. The successive multiplies are designated by the
prefixes, deka- (formerly deca-), hecto-, kilo-, and myria-
(seldom used); successive parts by deci-, centi-, and milli-.
The prefixes mega- and micro- are used to denote a multiple
by one million, and the millionth part, respectively; giga-
and nano- denote multiples of one billion (1,000,000,000) and
one billionth, respectively. The prefix for one trillion
(1012) is tera, and for one trillionth (10-12) is pico; for
one quintillion (1015) peta, and for (10-15) (one
quintillionth) femto; for (10-18) atto. See the words formed
with these prefixes in the Vocabulary. For metric tables, see
p. 1682.
[1913 Webster +PJC]
From WordNet (r) 3.0 (2006) [wn]:
metric system
n 1: a decimal system of weights and measures based on the meter
and the kilogram and the second
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