◙ noun, [mass noun] 1. a loose aggregation of small water-worn or pounded stones • 砾石 a mixture of such stones with coarse sand, used for paths and roads and as an aggregate • （用于铺路及用作三合土的）砂砾 a stratum or deposit of such stones • 砂砾层 [Medicine] aggregations of crystals formed in the urinary tract • [医] 尿砂 ◙ (gravelled, gravelling; 美 graveled, graveling), [with obj.] 1. cover (an area of ground) with gravel • 用砂砾铺 2. [US informal] make (someone) angry or annoyed • [美，非正式] 使气恼，搅扰 »the strike was badly organized and it gravelled him to involve himself in it. 这次罢工组织不力，他为自己参与其中而感到懊恼。 (archaic)make (someone) feel confused or puzzled • [古] 使困惑
【语源】
1. Middle English: from Old French, diminutive of grave (seegrave)