testing ground

/ˌtɛstɪŋ ˈgraʊnd/
IPA guide

Other forms: testing grounds

Definitions of testing ground
  1. noun
    a region resembling a laboratory inasmuch as it offers opportunities for observation and practice and experimentation
    “the new nation is a testing ground for socioeconomic theories”
    synonyms: laboratory
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    type of:
    region
    a large indefinite location on the surface of the Earth
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