| NOUN | act | brain surgery | any surgical procedure involving the brain |
|---|
| Meaning | Any surgical procedure involving the brain. | |
|---|---|---|
| Narrower | psychosurgery | brain surgery on human patients intended to relieve severe and otherwise intractable mental or behavioral problems |
| split-brain technique | brain surgery on animals in which the corpus callosum (and sometimes the optic chiasm) is severed so that communication between the cerebral hemispheres is interrupted | |
| Broader | operation, surgery, surgical operation, surgical procedure, surgical process | A medical procedure involving an incision with instruments |
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