pus An off-white or yellow liquid consisting of inflammatory exudate, the debris of leukocytes (white blood cells) and bacteria resulting from local inflammation, especially abscesses. Pus contained in cavities is relatively inaccessible to antibiotics and may require drainage by surgery. Pus suggests but does not prove the presence of bacterial infection. Related category HEALTH AND DISEASE Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) |