A surgical procedure or medical treatment aimed at dulling or reducing sensitivity, particularly in the nervous system or sensory perception.
From Latin hebēs (dull) + Greek -tomy (cutting or surgical procedure), following the medical naming convention seen in 'lobotomy' or 'vasectomy' where surgical procedures are named with specific Greek/Latin roots.
This word represents a dark chapter in medical history—it reflects the disturbing era when surgeons thought they could 'fix' mental illness by literally cutting nerves or brain tissue to dull sensation and emotion.
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