Definitions

1. noun

A foul or noxious smell, especially one that is thought to be a sign of disease or corruption.

“The doctor warned the family about the miasma spreading from the abandoned building.”

2. noun

A supposed atmosphere or influence that is thought to have a corrupting or unhealthy effect on people, especially in the 19th century.

“The superstition surrounding the miasma led to a decline in the town’s population.”

3. verb

To give off a foul or noxious smell, especially one that is thought to be a sign of disease or corruption.

“The swampy area miasmed the air around it, making it difficult to breathe.”