precursor

• precursor

• precursor

• precursor

• precursor

• precursor

• precursor

• precursor

precursor

Noun

a substance from which another substance is formed (especially by a metabolic reaction)

Synonyms:

• precursor

Noun

a person who goes before or announces the coming of another

Synonyms:

• precursor
• forerunner

Noun

something that precedes and indicates the approach of something or someone

Synonyms:

• harbinger
• forerunner
• predecessor
• herald
• precursor