What is the meaning of Epidemic?

A widespread disease that affects many humans in a population.

An occurrence of a disease or disorder in a human population at a frequency higher than that expected in a given time period; an episode of outbreak and subsequent high prevalence.

A heightened occurrence of anything harmful.

The spreading of an idea or belief amongst a population.

Of, related to, or being an epidemic: a widespread outbreak of disease in humans.

Like an epidemic: widespread in a bad way.

epidemic

Source: wiktionary.org