metric ton

tonne, unit equal to 1000 kilograms

A tonne (t) or metric ton (M/T), also referred to as a metric tonne, is a measurement of mass equal to 1,000 kilograms. It is not an SI unit but is accepted for use with the SI. The proper SI unit for a tonne would be a "megagram" (Mg, see SI prefix), but this term is rarely used in practice. Though the spelling tonne predates the introduction of the SI system in 1960, it is now used as the standard spelling for the metric mass measurement in English. The similar Imperial units and United States customary units are spelled ton in English.
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Noun
1. a unit of weight equivalent to 1000 kilograms
(synonym) MT, tonne, t
(hypernym) metric weight unit, weight unit
(part-meronym) quintal

A unit of weight equal to 2,204.6 pounds. (DOE5)

Common international measurement for the quantity of greenhouse gas emissions. A metric ton is equal to 2205 lbs or 1.1 short tons. See short ton.