millisecond.
An SI unit of time equal to 10⁻³ seconds. Symbol: ms
Meaning & usage
An SI unit of time equal to 10⁻³ seconds. Symbol: ms
The suggestion that pulsars were rotating neutron stars was put forth independently by Thomas Gold and Franco Pacini in 1968, and was soon proven beyond reasonable doubt by the discovery of a pulsar with a very short (33-millisecond) pulse period in the Crab nebula.ᵂ
Where this word comes from
Etymology tree Proto-Indo-European *sem- Proto-Indo-European *sm̥- Proto-Indo-European *-is Proto-Indo-European *-h₂ Proto-Indo-European *-ih₂ Proto-Indo-European *smih₂ Proto-Indo-European *ǵʰes- Proto-Indo-European *-lom Proto-Indo-European *ǵʰéslom ▲ Proto-Indo-European *-ih₂ Proto-Indo-European *ǵʰéslih₂ Proto-Indo-European *smih₂ǵʰéslih₂ Proto-Italic *smīɣeslī Latin mīlleder. French milli- English milli- Old French secondebor. Middle English secunde English second English millisecond From milli- + second.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.