📖 WordNook

grinding

noun
  1. a harsh and strident sound
    “The grinding of the machine's gears irritated the workers.”
  2. material resulting from the process of grinding
    “vegetable grindings clogged the drain”
  3. the wearing down of rock particles by friction due to water, wind, or ice
    “The erosion of the limestone was caused by grinding.”
    attrition