Definition of Noble Experiment in US English:

Noble Experiment

noun

  • The Eighteenth Amendment to the Constitution, under which the sale of alcohol was prohibited in the U.S. between 1920 and 1933, regarded as an experiment in social engineeering; prohibition under these terms.

Origin

1920s; earliest use found in The New York Times. Apparently alluding to a letter, later repeated in a speech by former U.S. President Herbert Hoover; see quot. 1928.