perfusion

in physiology
https://doi.org/10.1351/goldbook.15967
  1. Act of pouring over or through, especially the passage of a fluid through the vessels of a specific organ.
  2. Liquid poured over or through an organ or tissue.
Source:
PAC, 2007, 79, 1153. (Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)) on page 1279 [Terms] [Paper]