any of various classes into which human blood can be divided according to immunological compatibility, based on the presence or absence of specific antigens on red blood cells.
any one of the various groups into which human blood is classified on the basis of its agglutinogens Also called blood type
See blood type.
blood group antigen
guilty of murder or bloodshed. Historical Examples Folkways William Graham Sumner noun guilt of murder or shedding blood
guilty of murder or bloodshed.