brain dead

Main Entry: brain death
Pronunciation: 'brAn-"deth
Function: noun
: the final stopping of activity in the central nervous system esp. as indicated by a flat electroencephalogram for a usually statutorily predetermined period of time —brain–dead /'brAn-"ded/ adjective

Main Entry: brain death
Function: noun
: final cessation of activity in the central nervous system especially as indicated by a flat electroencephalogram for apredetermined length of time —brain–dead adjective

brain death n.
Irreversible brain damage and loss of brain function, as evidenced by cessation of breathing and other vital reflexes, unresponsiveness to stimuli, absence of muscle activity, and a flat electroencephalogram for a specific length of time. Also called cerebral death.

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brain'-dead' adj.

brain death   Permanent brain damage resulting in loss of brain function, manifested by cessation of breathing and other vital reflexes, unconsciousness with unresponsiveness to stimuli, absence of muscle activity, and a flat electroencephalogram for a predetermined length of time. Patients who are brain-dead may still exhibit normal function of the heart, lungs, and other vital organs if they are receiving artificial life support.