Meaning of the word stressor in English

What does stressor mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

stressor

US /ˈstres.ɚ/
UK /ˈstres.ər/

Noun

a chemical or biological agent, environmental condition, external stimulus, or an event that causes stress to an organism

Example:
Lack of sleep is a major stressor for many people.
Financial problems can be a significant stressor in a relationship.