- complete cessation of brain function as evidenced by absence of brain-wave activity on an electroencephalogram: sometimes used as a legal definition of death.
Origin of brain death
First recorded in 1965–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for brain-dead
I certainly had no interest in the formulaic, brain-dead content on most TV dramas and sitcoms.Five Lessons the Faltering Music Industry Could Learn From TV
August 3, 2014
In short, none of those shouting heads, like on Fox and MSNBC; no brain-dead Kardashians.No Fireworks on Al Jazeera America’s Plodding Debut
August 21, 2013
While not brain-dead, the 81 year old exists in a persistent vegetative state.Ariel Sharon's Twilight Zone
October 19, 2009
- irreversible cessation of respiration due to irreparable brain damage, even though the heart may continue beating with the aid of a mechanical ventilator: widely considered as the criterion of death
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for brain-dead
1976, popularized in U.S. by the Karen Anne Quinlan case (brain death is from 1968).
Online Etymology Dictionary, © 2010 Douglas Harper
- 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.cerebral death
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- 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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.