Metre Definition And Meaning

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 …

Dec 5, 2025 · 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 …

Meter and metre are two spellings of the same word, which refers to a unit of measurement in the metric system equal to 100 centimeters. The difference lies in the geographic or cultural …

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

The metre, symbol m, is the SI unit of length. It is defined by taking the fixed numerical value of the speed of light in vacuum c to be 299 792 458 when expressed in the unit m s–1, where the …

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

For this reason the metre was slightly changed in length and based on something much more stable. It is now defined as "the length of the path travelled by light in a vacuum during a time …

4 meanings: 1. a metric unit of length equal to approximately 1.094 yards 2. the basic SI unit of length; the length of the.... Click for more definitions.

The metre is defined by taking the fixed numerical value of the speed of light in vacuum, 𝒸, to be 299 792 458 when expressed in the unit m s −1, where the second is defined in terms of the …

Dec 21, 2025 · metre (plural metres) The basic unit of length in the International System of Units (SI: Système International d'Unités), equal to the distance travelled by light in a vacuum in …