by experimentation

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ThesaurusAntonymsRelated WordsSynonymsLegend: experimentation - in an experimental fashion; "this can be experimentally determined"
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The type of knowledge which can be produced by experimentation is not limited to the formulas, axioms or results classically associated with science.
Perhaps the most notable finding to emerge is the vital role played by experimentation," they conclude, noting that it plays a critical role in expanding a firm's knowledge by increasing its confidence in the choice of options and in encouraging the firm "to widen its breadth of vision, investigating potential choices outside its current frame of reference.