A stamp or card issued by a government to allow the holder to obtain food or other commodities that are in short supply during wartime or in other emergency situations when rationing is in force.

celestial horizon

plural of iron ration

(historical) An emergency ration given to soldiers in the early 20th century, consisting of cakes made from beef bouillon powder and wheat; chocolate; and packets of salt and pepper.

measurement involving a ratio, as by a ratiometer

plural of ratiometer

A measurement device used in ohmmeters, having two coils, one connected via a series resistor to the battery supply and the other connected to the same battery supply via a second resistor and the resistor under test. The indication on the meter was proportional to the ratio of the currents through the two coils.

A symptom elicited by the statements of the patient and not as the result of a physical examination.

plural of compo ration

(Britain, World War II, historical) A composition ration; a crate containing food, tea, soap, toilet paper etc. for 14 men for one day.