from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Brain surgery used to treat severe, intractable mental or behavioral disorders.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Surgery of the brain to treat or alleviate mental illness.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. brain surgery on human patients intended to relieve severe and otherwise intractable mental or behavioral problems


From psycho- +‎ surgery. (Wiktionary)



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