[{"Bold_text": "noun", "List Items": ["the that the earliest life forms on earth developed from nonliving matter.Compare biogenesis .", "Also calledspon·ta·ne·ous gen·er·a·tion[spon-, tey, -nee-, uh, s jen-, uh, -, rey, -sh, uh, n].the now discredited theory that living organisms can arise spontaneously from inanimate matter."]}]