noun
: a crystallizable albumin or mixture of albumins that normally constitutes more than half of the protein in blood serum, blood plasma, and other serous fluids, that can be isolated after precipitation of the globulins or by electrophoresis, that is synthesized in the liver, and that serves to maintain the osmotic pressure of the blood and is used in transfusions for the treatment of shock and other medical and surgical conditions — called also blood albumin