Definition of knurl in English:

knurl

noun

  • A small projecting knob or ridge, especially in a series around the edge of something.

    • ‘The slots for the knurls are not critical and can easily be cut using a hacksaw and a file.’
    • ‘When I grabbed the gleaming chrome door handle, I felt machined bumps, or knurls, that provide extra grip.’
    • ‘These knurls are slightly harder and in most applications deliver a substantial increase in tool life.’
    nodule, gnarl, knurl, node, lump, knob, swelling, growth, gall, protuberance, bump
    View synonyms

Origin

Early 17th century: apparently a derivative of knur.

Pronunciation:

knurl

/nəːl/