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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 caesium.
a unit of measurement of length in the metric system, equal to 100 centimetres or approximately 1.094 yards: The property lies within approximately 150 metres from the construction site but would not be directly affected. The price of water rose to 48p per cubic metre. See also. kilometre.
Jul 4, 2024 · 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.
noun. a metric unit of length equal to approximately 1.094 yards. 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.
noun (3) me· ter ˈmē-tər. : the base unit of length in the International System of Units that is equal to the distance traveled by light in a vacuum in ¹/₂₉₉,₇₉₂,₄₅₈ second or to about 39.37 inches see Metric System Table. meter. 4 of 6.
METRE meaning: 1. a unit of measurement equal to 100 centimetres: 2. the regular arrangement of syllables in…. Learn more.
Definition of metre noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
