Definition

Noun: A significant and complex surgical operation that typically requires general anesthesia or respiratory assistance, involves a higher degree of risk, and often requires an extended hospital stay for recovery.

Usage

This term is used to categorize and describe surgical procedures based on their complexity, risk level, and the resources required. It contrasts with "minor surgery."

Examples

• The patient underwent major surgery to replace a heart valve.
• A hip replacement is considered major surgery.
• The doctor explained the risks associated with the major surgery.

Advanced Usage

• The phrase can be used in a metaphorical sense to describe a significant, fundamental, and difficult change or restructuring.
  • The company's reorganization was major surgery, affecting every department.

Variants and Related Words

• Minor surgery (n.): A surgical procedure of lesser complexity, often performed under local anesthesia without the need for hospitalization.
• Operation (n.): A general term for a surgical procedure.
• Procedure (n.): A specific course of action, which in a medical context can be surgical.

Synonyms

• Invasive surgery
• Significant operation
• Complex procedure

Antonyms

• Minor surgery
• Outpatient procedure
• Non-invasive treatment

Related Phrases/Idioms

• To undergo major surgery: The standard phrase for having this type of operation.
  • He will undergo major surgery next week.

Noun

1. any surgical procedure that involves anesthesia or respiratory assistance