Bedeutung von “precursor” — Learner’s Dictionary

precursor

noun [ C ] us uk /ˌpriːˈkɜːsər/ formal

something that happens or exists before something else and influences its development:

The European Coal and Steel Community was a precursor of the European Union.
Infection with HIV is a precursor to AIDS.

(Definition von “precursor” aus dem Cambridge Learner's Dictionary © Cambridge University Press)