The crease or depression of the human body at the junction of the trunk and the thigh, together with the surrounding region.
The area adjoining this fold or depression. Example: He pulled a muscle in his groin.
The projecting solid angle formed by the meeting of two vaults
The genitals. Example: He got kicked in the groin and was writhing in pain.
The surface formed by two such vaults.
To deliver a blow to the genitals of. Example: In the scrum he somehow got groined.
To build with groins.
(literary) To hollow out, to excavate. Example: 'Down some profound dull tunnel, long since scooped / Through granites which titanic wars had groined.' (From Strange Meeting by Wilfred Owen).
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