exudation, exudative 1. The act of exuding; sweating; a discharge of humors, moisture, juice, or gum, as through pores or incisions; also, the substance exuded. 2. The process of exuding; the slow escape of liquids from blood vessels through pores or breaks in the cell membranes. 3. A substance that oozes out from animal or plant pores. Found on http://www.wordinfo.info/words/index/info/view_unit/2061/