the area between the abdomen and the thigh on either side of the body 腹股沟 ■(informal)the region of the genitals (非正式)阴部,私处 he took a pace back and kicked him in the groin. 他后退一步踢中了他的下身。
(Architecture)a curved edge formed by two intersecting vaults (建筑)(交叉)穹棱;穹棱肋
语源
late Middle English grynde, perhaps from Old English grynde 'depression, abyss'