vividialysis, vividiffusion 1. Dialysis through a living membrane. 2. The process of removing diffusible substances from the blood of a living animal by allowing it to flow through dialyzing membranes immersed in a saline solution. Normally, dialysis is the process of cleansing the blood by passing it through a special machine; a procedure that i... Found on http://www.wordinfo.info/words/index/info/view_unit/2318/5