Blood fluid is a term used to describe the liquid component of blood, which is made up of several different components. The crossword solutions for the term blood fluid include SERO (4 letters), SERA (4 letters), PLASM (5 letters), SEROUS (6 letters), SERUM (5 letters), PLASMA (6 letters), and LYMPH (5 letters). Sero and sera are both terms used to describe the clear, yellowish fluid that is found in the lymphatic system. Plasm and PLASMA refer to the liquid portion of the blood, which is composed of water, proteins, and other substances. SEROUS is a term used to describe the thin, watery fluid that is found in the pleural cavity and pericardial cavity. SERUM is the clear, straw-colored liquid that is left after the clotting of blood. Lastly, LYMPH is a clear, slightly yellowish fluid that is found in the lymphatic system.