You searched for: “precursor
precursor (s) (noun), precursors (pl)
Something that precedes and indicates, suggests, or announces someone or something to come: Jack and Jill got engaged in April, which was a precursor to their marriage in December of the same year.
This entry is located in the following unit: Alchemy, an ancient science (page 2)
Someone or something which precedes or indicates another action or event that is to come or to follow. (2)