proving ground

American  

noun

1. any place, context, or area for testing something, as a piece of scientific equipment, a theory, etc.

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proving ground British  

noun

1. a place or situation in which something new, such as equipment or a theory, can be tested

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Etymology

Origin of proving ground

First recorded in 1940–45

Example Sentences

The IPL, critics argued, was a domestic proving ground - impressive, but not definitive.

From BBC

With millions now flowing through endorsement deals and revenue-sharing with colleges, more families see high school as a high-stakes proving ground.

From The Wall Street Journal

The mine was restarted as a proving ground for Rio Tinto’s RIO 2.74%increase; green up pointing triangle new method of unlocking low-grade copper deposits.

From The Wall Street Journal

Hospitals are a proving ground for what AI can and can’t do.

From The Wall Street Journal

In August 2022, Google introduced a chatbot model with a range of conversational abilities, making it available to a limited number of people through an app called AI Test Kitchen, a proving ground of sorts.

From The Wall Street Journal