Procedure and Surgery Terms

Medical procedures, operations, interventions, and routes used to access the body. Browse definitions and meanings below.

249 terms

How are operations named?

Most operation names are built rather than invented. A root names the body part and an ending names what was done to it, so the name of an unfamiliar procedure can usually be worked out from its parts.

Four endings carry most of the work. A name ending in -ectomy means something was removed, -otomy means it was cut into, -ostomy means a new opening was made, and -plasty means it was reshaped or repaired. A gastrectomy removes part of the stomach, a gastrotomy opens it, and a gastrostomy creates a lasting opening into it. One syllable separates three different operations.

Terms in this topic

Alphabetical order

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.