colorless watery fluid of blood any lymph containing no cells and in which erythrocytes and leukocytes and platelets are suspended. lymph: a thin coagulable fluid containing white blood cells and chyle.
tiny bits of protoplasm found in vertebrate blood; essential for blood clotting. protoplasm: the substance of a living cell(including cytoplasm and nucleus)
Red blood cell
A mature blood cell that contains hemoglobin to carry oxygen to the bodily tissues. hemoglobin: a hemoprotein composed of globin and heme that gives red blood cells their characteristic color.
White blood cell
Blood cells that engulf and digest bacteria and fungi. Bacteria: single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission.