Where older traditional length measures are still used, they are now defined in terms of the metre – for example the yard has since 1959 officially been defined as exactly 0.9144 metre.

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 …

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

In the study of poetry, metre is the regular and rhythmic arrangement of syllables according to particular patterns.

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

The effect of this definition is that one metre is the length of the path travelled by light in vacuum during a time interval with duration of 1 ⁄ 299 792 458 of a second.

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 …

The SI unit of length, the metre (m), takes its name from Greek and French nouns for “measure”. The metre, along with the kilogram, was one of the first units of the metric system.

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 …

poetic measure; arrangement of words in regularly measured, patterned, or rhythmic lines or verses. a particular form of such arrangement, depending on either the kind or the number of …