timelike.
Of a four-vector in representing a point in spacetime, having a positive or negative four-vector norm for the metric signature (+, -, -, -) and (-, +, +, +) respectively.
Meaning & usage
Of a four-vector in representing a point in spacetime, having a positive or negative four-vector norm for the metric signature (+, -, -, -) and (-, +, +, +) respectively.
(of the interval between two events in spacetime) Having overlapping light cones, so that information can pass from one to the other, and one can be envisaged as a cause of the other.
Where this word comes from
Etymology tree Proto-Indo-European *deh₂- Proto-Indo-European *deh₂y- Proto-Indo-European *-mṓ Proto-Indo-European *dh₂i-mon- Proto-Germanic *tīmô Proto-West Germanic *tīmō Old English tīma Middle English tyme English time Proto-Indo-European *leyg-der. Proto-Germanic *līkąder. Proto-Germanic *-līkaz Proto-West Germanic *-līk Old English -līċ Middle English -like English -like English timelike From time + -like.
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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.