Etymology

ultrafiltration

U1L1T1R1A1F4I1L1T1R1A1T1I1O1N1

Today it means: Filtration through a semipermeable membrane that only allows small molecules through. Full definition →

English filtration ← French filtration ← Latin filtrum
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The story

  1. Proto-Indo-European*h₂el-
  2. Latinūls
  3. Latinultrā
  4. Englishultra-
  5. Proto-Indo-European*pel-
  6. Proto-Germanic*fellą
  7. Proto-West Germanic*felt
  8. Latinfiltrum
  9. Frenchfiltre
  10. Frenchfiltrer
  11. Frenchfiltration
  12. Englishfiltration
  13. English todayultrafiltration

From ultra- + filtration.

Etymology from Wiktionary, CC BY-SA 4.0.