Key terms & definitions

A trial in which the participant does not know whether they receive the medicine or the comparison treatment.

The sustained German bombing campaign against London and other British towns and cities, mainly from September 1940 to May 1941.

Meaning ‘lightning war’: rapid attacks intended to defeat an enemy quickly.

An attempt to prevent supplies reaching an enemy, particularly by using warships to control access by sea.

An attempt to prevent supplies or reinforcements from reaching an enemy position, for example by controlling its sea routes.

A film that achieves very large commercial success, often associated with broad audience appeal and spectacular entertainment.

A diagram using labelled boxes and arrows to show the functions of parts of a system and the direction of signals between them.

A small fortified military post. British blockhouses and connecting barbed wire helped restrict Boer movement.

A persistent pressure pattern in which high pressure obstructs the usual movement of weather systems, potentially prolonging dry weather in some areas and wet weather in others.

The arrangement and movement of performers within a scene, including their positions relative to each other and the setting.

An online non-fiction post that communicates information, opinions, experiences or advice to readers.

A tissue consisting of plasma with red blood cells, white blood cells and platelets suspended in it.

A supply of collected, stored blood kept ready for transfusions.

A selectively permeable boundary formed by the brain's capillaries that restricts the movement of many substances from the blood into brain tissue.

The formation of blood cells in bone marrow, including red blood cells that carry oxygen.

The continuous movement of blood around the body, driven by the pumping action of the heart.

A solid plug formed when blood cells become trapped in a fibrin mesh.

The process that forms a solid plug at a damaged blood vessel.

The process in which blood forms a clot to help stop bleeding.

A prohibited method in which blood is removed, stored and later re-injected to increase the number of red blood cells and improve oxygen delivery.

A continuing conflict in which families take revenge for harm done to their members.

The amount of glucose dissolved in a given volume of blood.

The amount of glucose dissolved in a given volume of blood.

The concentration of glucose, a sugar used by cells in respiration, in the blood.

Removing blood from a patient as a treatment, commonly intended to restore the balance of the humours.

The false accusation that Jewish people murdered Christian children for religious purposes.

The liquid component of blood in which blood cells and dissolved substances are carried.

The force exerted by circulating blood on the walls of blood vessels.

The pressure exerted by circulating blood on the walls of blood vessels.

An activity enjoyed as sport or entertainment that involves injuring or killing animals.