superfuse

transitive verb

su·​per·​fuse ˌsü-pər-ˈfyüz 

superfused; superfusing

: to maintain the metabolic or physiological activity of (as an isolated organ) by submitting to a continuous flow of a sustaining medium over the outside

the artificial cerebrospinal fluid … that superfused the isolated cortical tissue

—C. D. Richards et al.

superfusion

-ˈfyü-zhən 

noun