The feral and congested fluids built up in a bruise or infection. Unlike a transudate, which is merely edema from lymphatic congestion, exudates contain dead cells, erythrocytes, white blood cells and often pus.
n. 1. the escape of pus, serum, blood, lymph, or other fluid into a body cavity as a result of inflammation or the presence of excess blood or tissue fluid in an organ or tissue. 2. fluid that has escaped into a body cavity. Such effusions may be exudates (rich in protein) or transudates (low in protein).... effusion