Definitions for "Brain death"
A state of irreversible coma in which cerebral and brain stem functions are absent.
irreversible cessation of cerebral and brain stem function; characterized by absence of: electrical activity in the brain, blood flow to the brain, and brain function as determined by clinical assessment of responses. A brain dead person is dead, although his or her cardiopulmonary functioning may be artificially maintained for some time.
the condition in which the brain stops functioning while the heart continues to beat