Serosanguineous means containing or relating to both blood and the liquid part of blood (serum). It usually refers to fluids collected from or leaving the body. For example, fluid exiting a wound that is serosanguineous is yellowish with small amounts of blood.
David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, Stephanie Slon, and Nissi Wang.