Definition of proving ground in English:

proving ground

Syllabification: prov·ing ground
Pronunciation: /ˈpro͞oviNG ˌɡround
 
/

noun

1An environment that serves to demonstrate whether something, such as a theory or product, really works: Bay County is the proving ground for a new gutter-cleaning vacuum
More example sentences
  • Like the technologies described above, today's dual-edge platforms will serve as the proving grounds for next-gen services such as CDNs (content distribution networks).
  • Of course, no repair job is really ever finished without a test ride, and the snowy micro-tundra that is Summit County, Ohio served as superb proving grounds.
  • In recent years, sliding-block puzzles have served as proving grounds for novel motion-planning strategies.
1.1A military facility for the testing of materiel and equipment: Aberdeen Proving Ground
More example sentences
  • Cities of the Plain begins its work by plunking down Grady and Parham on the same ranch: a dusty, overgrazed New Mexico spread on the edge of a postwar military proving ground.
  • The US Army proving grounds is located in Aberdeen, Maryland on 72,960 acres. It is the oldest active proving ground where weapons and military technology are experimented or tested.
  • The inner canister was flown to the Army's air field at the proving ground and put in a clean room, a work area in which the air quality, temperature and humidity are highly regulated to prevent contamination.

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Word of the day demoralize
Pronunciation: dəˈmôrəˌlīz
verb
cause (someone) to lose confidence or hope; dispirit