This medical meaning refers to a severe state of unconsciousness caused by illness, injury, drugs, or metabolic disturbance.
The patient remained in a coma for several days.
The accident left him in a medically induced coma.
This figurative or humorous use describes extreme inactivity, dullness, or sleepiness.
The industry seemed to fall into a coma during the crisis.
After the meal, he sank into a food coma.
