Knurl

1. (n.) A contorted knot in wood; a crossgrained protuberance; a nodule; a boss or projection.

2. (n.) One who, or that which, is crossgrained.

3. (v. t.) To provide with ridges, to assist the grasp, as in the edge of a flat knob, or coin; to mill.

Thesaurus Entries

Vandyke, bilge, blain, blaze, bleb, blister, blob, boss, bow, bubble, bulb, bulge, bulla, bump, bunch, burl, button, cahot, chine, chop, clump, condyle, convex, crenellate, crenulate, crimp, cut, dowel, ear, flange, flap, gall, gash, gnarl, handle, hill, hump, hunch, incise, indent, jag, jog, joggle, knob, knot, knur, lip, loop, lump, machicolate, mill, mole, mountain, nevus, nick, notch, nub, nubbin, nubble, papilloma, peg, picot, pink, rib, ridge, ring, scallop, scarify, score, scotch, serrate, shoulder, slash, spine, stud, style, tab, tooth, tubercle, tubercule, verruca, vesicle, wale, wart, welt