Bacteria turn to endospore when they undergo stress, such as increase in heat or lack of nutrient.

It could indicate such conditions as if they were injured, poisoned, undergoing stress or other emotional behavior.

This viewer is undergoing stress natural to the drama.

The system is beginning to undergo stress, to radiate fracture lines.

The marriage undergoes less stress if the man can line up a job in advance.

It seems that his-outbreaks-occur when he undergoes great emotional stress.

A department store dynasty undergoes emotional and financial stress.

Any kind of work during which the knees undergo heavy stress may also be detrimental to cartilage.

When the battery is made to contain more material, the separator can undergo stress.

He was undergoing great mental stress long before that, I'm afraid.