節,瘤,隆起
Knurl \Knurl\, n. [See {Knar}, {Gnar}.] A contorted knot in wood; a crossgrained protuberance; a nodule; a boss or projection. 2. One who, or that which, is crossgrained. Knurl \Knurl\, v. t. To provide with ridges, to assist the grasp, as in the edge of a flat knob, or coin; to mill.