Concave on both sides of a structure, usually referring to a disc or a lens.
Of particular importance to physiology is the structure of mature red blood cells (erythrocytes), which is a flattened cell that has assume a biconcave shape. It is thought that the biconcave shape of red blood cells helps with the flow property of blood through blood vessels.
Posted: Sunday, March 31, 2013 Last updated: Friday, August 28, 2015