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The angular curve made by the intersection of two semi-cylinders or arches. It is either regular or irregular.

Groin

The angular curve made by the intersection of two semi-cylinders or arches. It is either regular or…

"Medieval Groins in early 12th century vaulting. A, A, groins. GROIN. In architecture, the curved intersection or arris of simple vaults crossing each other at any angle." -Whitney, 1911

Groin Vault

"Medieval Groins in early 12th century vaulting. A, A, groins. GROIN. In architecture, the curved intersection…

Superficial lymphatic vessels and nodes of the right lowers extremity and groin.

Superficial Lymphatics and Vessels and Nodes of the Legs

Superficial lymphatic vessels and nodes of the right lowers extremity and groin.