1. The crease at the junction of the inner part of the thigh with the trunk together with the adjacent region and often including the external genitals
   "The doctor examined the patient's groin for signs of hernia";
   - inguen
    
2. A curved edge formed by two intersecting vaults
   "The cathedral's ceiling featured intricate groins where the arches met"
    
3. A protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing away
   "The town built a groin to protect the harbour from strong waves";
   - breakwater, groyne, mole, bulwark, seawall, jetty

1. (construction) build with groins
   "The ceiling was groined"

Derived forms: groins, groining, groined

Type of: area, barrier, build, construct, edge, make, region

Part of: loins

Encyclopedia: Groin