brain dead

1. 1.

   having irreversible loss of brain function as indicated by a persistent flat electroencephalogram

   “was declared brain dead”

   Similardead

Questions about brain dead

What does brain dead mean?

brain dead means "having irreversible loss of brain function as indicated by a persistent flat electroencephalogram".

Is brain dead a common word?

brain dead is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.