brain death

noun

: final cessation of activity in the central nervous system especially as indicated by a flat electroencephalogram for a predetermined length of time

Examples of brain death in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In 2019, Alek Hermon faced the heartbreaking decision to take his father, who had suffered whole brain death, off life support. Brittney Melton, NPR, 24 July 2025 Multiple instances of vaginal deliveries after brain death also remain unexplained, given that the brain coordinates mechanisms of vaginal labor. Lindsey Breitwieser, The Conversation, 1 July 2025 Rather, this is a difficult case about laws that govern withdrawing supportive measures for pregnant patients who suffer brain death, and who gets to make those decisions. Katherine Drabiak, The Orlando Sentinel, 1 June 2025 At the emergency room, doctors observed symptoms consistent with brain death and she was pronounced dead the next day. Amanda Lee Myers, USA Today, 18 July 2025 See All Example Sentences for brain death

Word History

First Known Use

1921, in the meaning defined above

Time Traveler
The first known use of brain death was in 1921

Browse Nearby Words

Cite this Entry

“Brain death.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/brain%20death. Accessed 5 Aug. 2025.

Kids Definition

brain death

noun
: the final stopping of activity in the central nervous system as indicated by an electroencephalogram showing no brain waves for a set length of time that is often used as a criterion for human death
brain-dead
ˈbrān-ˌded
adjective

Medical Definition

brain death

noun
: final cessation of activity in the central nervous system especially as indicated by a flat electroencephalogram for a predetermined length of time
brain-dead adjective

Legal Definition

brain death

noun
ˈbrān-ˌdeth
: the final stopping of activity in the central nervous system especially as indicated by a flat electroencephalogram for a usually statutorily predetermined period of time
brain-dead adjective

More from Merriam-Webster on brain death

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