metric system


metric system
/ˈmɛtrɪk sɪstəm / (say 'metrik sistuhm)

noun
a decimal system of measurement, first adopted in France in 1795, and adopted internationally by the Metric Convention in 1875. The modern metric system, known as the International System of Units (SI), was adopted in 1960 and introduced in Australia in 1970. It comprises seven base units, the metre (m), kilogram (kg), second (s), ampere (A), kelvin (K), mole (mol), and candela (cd), two supplementary units, the radian (rad) and the steradian (sr), and derived units, formed by combining base and supplementary units according to the algebraic relations linking the corresponding physical quantities. Thus the SI unit of density, mass per unit volume, is the kilogram per cubic metre (kg/m3). Special names have been given to some derived units; thus the unit of power, defined as a joule per second, is called a watt (W). Decimal multiples and submultiples of SI units may be formed by means of the following prefixes:
Thus 1 000 000 watts (106W) may be expressed as 1 megawatt (1 MW). Each SI unit name and each prefix has an internationally uniform symbol associated with it.

Australian English dictionary. 2014.

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  • metric system — ˈmetric ˌsystem noun [singular] the system of weights and measures that is based on the metre and the kilogram: • The metric system is in use in most of the industrial countries. * * * metric system UK US noun [S] ► MEASURES the system of… …   Financial and business terms

  • Metric system — 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;… …   The Collaborative International Dictionary of English

  • Metric system — Met ric sys tem . 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[… …   The Collaborative International Dictionary of English

  • metric system — metric .system n the metric system the system of weights and measures that is based on the kilogram and the metre …   Dictionary of contemporary English

  • metric system — n a decimal system of weights and measures based on the meter and on the kilogram compare CGS, MKS * * * a decimal system of weights and measures based on the meter. See also SI unit, under unit, and see Appendix 7 …   Medical dictionary

  • metric system — ► NOUN ▪ the decimal measuring system based on the metre, litre, and gram as units of length, capacity, and weight or mass …   English terms dictionary

  • metric system — n. any of various decimal systems of weights and measures; now, esp., the SI system, in which the centimeter, gram, and second or the meter, kilogram, and second are the basic units: see the table of weights and measures in the Reference… …   English World dictionary

  • Metric system — This article is about the metric system in general. For information about specific versions of the system, such as the International System of Units or the cgs system of units, see #Variants. For a generally accessible and less technical… …   Wikipedia

  • metric system — noun a decimal system of weights and measures based on the meter and the kilogram and the second • Hypernyms: ↑system of weights and measures • Hyponyms: ↑cgs, ↑cgs system, ↑Systeme International d Unites, ↑Systeme International, ↑ …   Useful english dictionary

  • metric system — a decimal system of weights and measures, adopted first in France but now widespread, universally used in science, mandatory for use for all purposes in a large number of countries, and favored for use in most (as in the U.S.). The basic units… …   Universalium