D defs.my
Entry 1 sense Webster, 1913

Percolation

· Per·co·la·tion · IPA /pɝkəˈleɪʃən/
01 n. The act or process of percolating, or filtering; filtration; straining. Specifically (Pharm.), the process of exhausting the virtues of a p…
  1. 1.
    The act or process of percolating, or filtering; filtration; straining. Specifically (Pharm.), the process of exhausting the virtues of a powdered drug by letting a liquid filter slowly through it.(Pharm.)