elutriation

/ɪˌluːtriˈeɪʃən/
noun
  1. The process of washing or purifying a substance by separating fine particles from coarse ones using a stream of liquid.
    • Elutriation is commonly used in geology to analyze soil composition.
    • Students learned about elutriation during their chemistry lab on particle separation.
    • The factory uses elutriation to remove dust from the raw materials.
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