Pre-cûr'sor, n.
n. [Lat. præcursor, It. precursore, Sp. precursor, Fr. précurseur. See supra.] A forerunner; a harbinger; one who, or that which, precedes an event, and indicates its approach.
Evil thoughts are the invisible, airy precursors of all the storms and tempests of the soul. Buckminster.
Synonyms—Forerunner; harbinger; messenger; predecessor; omen; sign.