archimedes' principle: (hydrostatics) the apparent loss in weight of a body immersed in a fluid is equal to the weight of the displaced fluid
law: a generalization that describes recurring facts or events in nature
cutaneous anthrax: a form of anthrax infection that begins as papule that becomes a vesicle and breaks with a discharge of toxins; symptoms of septicemia are severe with vomiting and high fever and profuse sweating; the infection is often fatal