noun
- surgical procedures involving the removal of a circular section of bone from the skull, typically to relieve pressure or access the brain
Usage: medical; plural form
Examples
- Ancient trephinations have been found in skulls dating back thousands of years.
- The archaeologist discovered evidence of successful trephinations in prehistoric remains.
- Modern trephinations are performed under sterile conditions with advanced equipment.
- The museum displayed skulls showing healed trephinations from various cultures.
- Emergency trephinations may be necessary to relieve intracranial pressure.
- Historical records document trephinations as early treatments for head injuries.