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

• unsweetened
• unswept
• unswerving
• unswervingly
• unsworn
• unsyllabic
• unsyllabled
• unsymbolic
• unsymmetric
• unsymmetrical
• unsymmetrically
• unsympathetic
• unsympathetically
• unsympathising
• unsympathizing
• unsynchronised
• unsynchronized
• unsynchronous
• exorciser
• exorcism
• exorcist
• exorcize
• exordial
• exordium
• exoskeletal