State of unconsciousness, Persistent vegetative state
English Meaning :
(Noun : A state of deep and often prolonged unconsciousness; usually the result of disease or injury)
Example : Since comets are mostly composed of ices, their outer layer vaporises as they approach the Sun, forming a cloud of gas and dust called the coma , which gives them a fuzzy appearance.
Word Example from TV Shows :
Put me into a COMA, why don't you?
(Breaking Bad Season 5, Episode 14)