David DaleMarcus DalyThomas DanforthHerbert Joseph DavenportEdward DavyCharles Gates DawesGerard DebreuJohn DeereAmasa DelanoOscar de la RentaWarren de la RueMichael DellWilliam Edwards…
(Encyclopedia) Schick test, diagnostic test designed to evaluate susceptibility to diphtheria. A small amount of diphtheria toxin is injected into the skin; the injection will produce an area of…
(Encyclopedia) escape velocity, the velocity a body must be given in order to escape the gravitational hold of some other larger body, e.g., the earth, moon, or sun. A body given less than the escape…
(Encyclopedia) May, Rollo, 1909–94, American psychologist, b. Ada, Ohio. Previously a theological student and Congregational minister, May received his doctorate in clinical psychology from Columbia…
(Encyclopedia) antidiuretic hormoneantidiuretic hormoneănˌtēdīy&oomacr;rĕtˈĭk [key], polypeptide hormone secreted by the posterior pituitary gland. Its principal action is to regulate the amount…
(Encyclopedia) Swithin or Swithun, SaintSwithin or Swithun, Saintboth: swĭᵺˈən [key], fl. 860, English bishop of Winchester. He was buried, according to his wishes, outside his church, but his relics…
(Encyclopedia) probability, in mathematics, assignment of a number as a measure of the “chance” that a given event will occur. There are certain important restrictions on such a probability measure.…
(Encyclopedia) lockout, intentional closing up of a company, factory, or shop by an employer to prevent employees from working during a strike or labor dispute. The term lockout is sometimes confused…
