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.

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 …

Beats or lengths of musical notes (Definition of metre from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

The difference lies in the geographic or cultural preference: meter is the preferred spelling in American English, while metre is preferred in British English and other forms of English …

Share Kids Definition metre me· tre ˈmēt-ər chiefly British variant of meter

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.

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

Illustrated definition of Metre | Meter: The basic unit of length (or distance) in the Metric System. The symbol is m Example: the length of this...

Alongside his intercomparisons of artifacts of the metre and contributions to gravimetry through improvement of the reversible pendulum, Peirce was the first to tie experimentally the metre to …

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 …