[{"Bold_text": "adjective", "List Items": ["pertaining to, derived from, or founded on experiment :an experimental science.", "of the nature of an experiment ;tentative:The new program is still in an experimental stage.", "functioning as an experiment used for experimentation :an experimental airplane.", "based on or derived from experience ;empirical:experimental knowledge."]}, {"Bold_text": "noun", "List Items": ["something that is experimental."]}]