The metre (or meter in US spelling; symbol: m) is the base unit of length in the International System of Units (SI). Since 2019, the metre has been defined as the length of the path travelled by light in vacuum during a time interval of ⁠ 1 / 299 792 458 ⁠ of a second, where the second is defined by a hyperfine transition frequency of ...

METRE definition: 1. a unit of measurement equal to 100 centimetres: 2. the regular arrangement of syllables in…. Learn more.

metre (m), in measurement, fundamental unit of length in the metric system and in the International Systems of Units (SI). It is equal to approximately 39.37 inches in the British Imperial and United States Customary systems.

A metre (US spelling, meter) is the basic unit of length in the SI measurement system. The symbol for the metre is m. The first meaning (in the French Revolution) was one ten-millionth of the distance between the Earth's equator and the North Pole along the Paris meridian. [1]

The metre is the base unit of length in the International System of Units (SI). Since 2019, the metre has been defined as the length of the path travelled by li...

Definition of metre noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

The metre is one of the seven fundamental units of measurement. 1 metre is equal to the path length covered by light in a given time in a vacuum, which is 1/299,792,458 of a second. Originally, the unit metre was defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along the great circle, so the Earth's ...

the basic SI unit of length; the length of the path travelled by light in free space during a time interval of 1/299 792 458 of a second. In 1983 this definition replaced the previous one based …

The metre, then, is the SI unit of measurement. It is further split into 100 centimetres (cm), or 1000 millimetres (mm). For long distances it often makes sense to talk in thousands of metres. One thousand metres is one kilometre, with the units km. For comparison, 1 metre is close to 3.28 feet (about a yard) and 1 kilometre is about 0.62 miles.

A metre is a metric unit of length equal to 100 centimetres. She set a world record in the 100 metre sprint at her national championships. The tunnel is 10 metres wide and 600 metres long.