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Adjective: experimental  ik,speer-u'men-t(u)l or ik,spe-ru'men-t(u)l [N. Amer], ik,spe-ru'men-t(u)l [Brit]
  1. Relating to or based on experiment
    "experimental physics"
     
  2. Relying on observation or experiment
    "experimental results that supported the hypothesis";
    - data-based, observational
     
  3. Of the nature of or undergoing an experiment
    "an experimental drug"

See also: empiric, empirical

Encyclopedia: Experimental