testing ground

noun

Definition of testing ground

1 : a place where machines, vehicles, etc., are tested to see if they are working correctly a testing ground for weapons
2 : a place or situation in which new ideas, methods, etc., can be tried Her class served as a testing ground for new teaching methods.

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“Testing ground.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/testing%20ground. Accessed 14 Jul. 2020.

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