levigation

/ˌlɛvɪˈɡeɪʃən/
noun
  1. The process of grinding or rubbing a substance into a fine powder, often mixed with a liquid.
    • In traditional pottery, levigation helps remove coarse particles from clay.
    • The chemist used levigation to turn the hard mineral into a smooth paste.
    • The pharmacist performed levigation to create a fine, uniform powder for the medicine.
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