precursor.
That which precurses: a forerunner, predecessor, or indicator of approaching events.
Meaning & usage
That which precurses: a forerunner, predecessor, or indicator of approaching events.
One of the compounds that participates in the chemical reaction that produces another compound.
Where this word comes from
Inherited from Middle English precursour, from Middle French precurseur or its etymon Latin praecursor (“forerunner”). By surface analysis, precurse + -or.
Caused by the following symbol.
Where this word comes from
Etymology tree Proto-Indo-European *per- Proto-Indo-European *preh₂- Proto-Indo-European *-i Proto-Indo-European *préh₂i? Proto-Italic *prai Proto-Italic *prai- Latin prae-lbor. Middle English pre- English pre- English cursor English precursor From pre- + cursor.
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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.