defense mechanism

noun

1. Physiology.,  the defensive reaction of an organism, as against a pathogenic microorganism.

2. Psychology.,  an unconscious process, as denial, that protects an individual from unacceptable or painful ideas or impulses.

defense mechanism

1. In psychology, a Freudian term referring to an unconscious avoidance of something that produces anxiety or some other unpleasant emotion. For example, someone who blots out the memory of a terrible accident is using a defense mechanism. Regression and sublimation are common defense mechanisms.

Word History and Origins

Origin of defense mechanism¹

First recorded in 1890–95

Example Sentences

A stingray’s defense mechanism is to camouflage itself on top of the ocean floor’s sand or buried under it.

From Los Angeles Times

It was a defense mechanism, I guess, as much as a way of connecting with them.

From Los Angeles Times

“I fell in love with his past but also his soul and the way he protects himself with the humor he uses as a defense mechanism,” Dager said.

From Los Angeles Times

“It was a defense mechanism because of my past history.”

From Salon

Maybe that’s shock or some sort defense mechanism, or shutting down.

From Los Angeles Times