Precursors
noun
1.
a person or thing that precedes, as in a job, a method, etc.; predecessor.
2.
a person, animal, or thing that goes before and indicates the approach of someone or something else; harbinger:
The first robin is a precursor of spring.
3.
Chemistry, Biochemistry. a chemical that is transformed into another compound, as in the course of a chemical reaction, and therefore precedes that compound in the synthetic pathway:
Cholesterol is a precursor of testosterone.
4.
Biology. a cell or tissue that gives rise to a variant, specialized, or more mature form.
noun
1.
a person or thing that precedes and shows or announces someone or something to come; harbinger
2.
a predecessor or forerunner
3.
a chemical substance that gives rise to another more important substance
precursor pre·cur·sor (prĭ-kûr’sər, prē’kûr’sər)
n.
One that precedes and indicates something to come.
One that precedes another; a forerunner or predecessor.
A biochemical substance, such as an intermediate compound in a chain of enzymatic reactions, that gives rise to a more stable or definitive product.
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- Pred.
1. predicate.