trituration

/ˌtrɪtʃəˈreɪʃən/
noun
  1. The act or process of grinding, crushing, or rubbing into a fine powder or paste.
    • The chef's trituration of the peppercorns created a fresh, aromatic spice blend.
    • The trituration of the mineral sample took several minutes in the laboratory.
    • Proper trituration ensures that the medicine is evenly mixed.