Definition of Precursor

something that happens before something else

Examples of Precursor in a sentence

As I looked up in the sky, I saw a large dark cloud, a precursor of an upcoming storm.  🔊

After watching my nephew for a while, I can easily recognize his moodiness as a precursor to naptime.  🔊

A movie preview is a standard precursor before the presentation of a feature film.  🔊

My itching is the precursor of the severe allergic reaction I will soon experience.  🔊

All too often, high blood pressure is a precursor of heart disease.  🔊

Obtaining an undergraduate degree is a definite precursor to going to graduate school.  🔊

If these tasty appetizers are a precursor to a delicious main course, I know I will be eating well tonight.  🔊

Before the twenty-screen cinema was built in our town, all we had was its precursor, a tiny two-screen theater.  🔊

An oil shortage is always a precursor to an increase in gas prices.  🔊

Without a precursor chemical reaction, the molecules will not combine to form water.  🔊

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