precursor
noun/priˈkɜrsər/
Frequency rank: #8,230 of 20,003 in the WORDED list (wordfreq data)
Meaning
something that comes before and leads to another thing; a forerunner.

Example sentence
The scientist explained that this chemical reaction is the precursor to the formation of the final compound.
Synonyms & related words
More words in ranks 8,201–8,300
- outsetthe beginning or start of something.
- patioa paved outdoor area adjoining a house, used for dining or relaxing.
- peacockA large male bird known for its brilliant blue-green plumage and spectacular fan-shaped tail.
- postcardA small, flat card used for sending messages by mail, often with a picture on one side.
- powerhousea person, organization, or thing of great energy, strength, or power.
- preferableMore desirable or suitable than something else.
- preparatorydone in order to prepare for something; serving as preparation.
- prisma transparent solid object with flat surfaces that refracts light, separating it into its spectrum of colors.
- proclamationan official public announcement, especially one made by a person in authority.
- provocativecausing strong reactions, especially anger or excitement; intended to provoke.