a medical treatment in which a doctor cuts into someone’s body to repair, remove, or replace something
After the accident, Maria needed emergency surgery on her leg.
The doctor explained that the surgery would last about two hours.
✦ Early 16th c. from French chirurgie, via Latin from Greek kheirourgia ‘hand-work’, from kheir ‘hand’ + ergon ‘work’.
a room or building where a doctor, dentist, or veterinarian sees and treats patients
I have an appointment at the doctor's surgery at nine o'clock.
The dentist's surgery was clean and brightly lit.
a scheduled time when a Member of Parliament meets constituents to hear their concerns and offer advice
The MP held a Friday evening surgery to meet local residents.
I spoke to my representative at her weekly surgery about housing issues.
a doctor who is specially trained to perform operations on the body
The surgeon carefully removed the patient's appendix during the operation.
After years of study, Carlos finally became a heart surgeon.
✦ Late Middle English, from Latin 'chirurgus' via Old French 'surgien', meaning "one who works with the hand".
a person who takes part in an armed rebellion against the government or established authority.
Government troops clashed with insurgents near the border town.
The insurgents retreated into the dense forest after the failed attack.
✦ From French *insurgent*, present participle of *insurger* ('to rise up'), ultimately from Latin *insurgō* ('I rise up'), from *in-* ('into') + *surgō* ('I rise').