perfuse /pəɹˈfjuːz/ verb2 •To permeate or suffuse something, especially with a liquid or with light.As a patient has decreased ability to perfuse tissue, conversion of glucose into carbon dioxide and energy in the cellular level is also decreased. — 2010 •To force a fluid to flow over or through something, especially through an organ of the body.When AVP was perfused into punctate regions in the brain of the sheep or rabbit, the pyrogen-induced fever was suppressed. — 1985 formsperfused · perfusing · perfuses