Constituting a tentative model for future experiment or development

• pilot

  1. That serves as a guide or guiding device
  2. Serving as a tentative model for future experiment or development:
  3. That serves as a trial unit for experimentation or testing

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  1. That serves as a guide or guiding device
  2. Serving as a tentative model for future experiment or development:
  3. That serves as a trial unit for experimentation or testing

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• test

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• trial

  1. Made or done in the course of a trial or test.
  2. Of a trial or trials
  3. Pertaining to a trial or test.

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  1. Made or done in the course of a trial or test.
  2. Of a trial or trials
  3. Pertaining to a trial or test.

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