1. Milled, as the head of a screw, or the edge of a coin 
2. Full of knots; gnarled

1. To provide with ridges, to assist the grasp, as in the edge of a flat knob, or coin; to mill

Encyclopedia: Knurl

• pictorially
• pictural
• picture
• picture book
• picture card
• picture element
• picture frame
• picture gallery
• picture hat
• picture palace
• picture plane
• picture postcard
• picture rail
• picture show
• picture taking
• picture tube
• picture window
• picture writing
• pictured
• picturesque
• picturesquely
• picturesqueness
• picturing
• picturise
• picturize