◙ noun 1. a long narrow hilltop, mountain range, or watershed • 山脊，山脉，岭；分水岭 »the North-East ridge of Everest. 珠穆朗玛峰东北向山脊。 the line or edge formed where the two sloping sides of a roof meet at the top • 屋脊 [Meteorology] an elongated region of high barometric pressure • [气象] 高压脊 a narrow raised band running along or across a surface • 脊状突起带，隆起部 »buff your nails in order to smooth ridges. 打磨指甲，让隆起部分平滑。 a raised strip of arable land, especially (in medieval open fields) one of a set separated by furrows • 垄，埂 ◙ verb 1. [withobj.] [often as adj. ridged] mark with or form into narrow raised bands • 使成脊突 »the ridged sand of the beach. 海滩上的沙脊。 [no obj.] (of a surface) form into or rise up as a narrow raised band • （表面）成脊状，起皱 »the crust of the earth ridged. 地壳起皱成脊。 form (arable land) into raised strips separated by furrows • 翻（耕地）作垄 »a field ploughed in narrow stitches that are ridged up slightly. 被翻成有微微隆起窄垄的耕地。
【派生】
♦ ridgy adjective
【语源】
1. Old English hrycg 'spine, crest', of Germanic origin; related to Dutch rug and German Rücken 'back'