picosecond.
An SI unit of time equal to 10⁻¹² seconds. Symbol: ps
Meaning & usage
An SI unit of time equal to 10⁻¹² seconds. Symbol: ps
Where this word comes from
Etymology tree Proto-Celtic *bekkos Gaulish *bekkosbor.? Latin beccus Old Spanish bico Spanish picobor. English pico- Old French secondebor. Middle English secunde English second English picosecond From pico- (“metric prefix”) + 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.