knurl
n.（名词）A knob, knot, or other small protuberance.球形突出物，树瘤：球形突出物、节瘤或其它小的突出物One of a series of small ridges or grooves on the surface or edge of a metal object, such as a thumbscrew, to aid in gripping.刻槽，压花：金属物体表面或边缘上的一系列小峰或凹槽，如指旋螺钉，使更容易握紧v.tr.（及物动词）knurled,knurl.ing,knurls To provide with knurls; mill.在…上滚花：刻上滚花；刻凹槽
来源：[Probably diminutive of] knur [] 可能是knur的小后缀
【引伸】
knurled
knurl.y
adj.（形容词）
