[{"Bold_text": "noun", "List Items": ["the external boundary of any surface or area.Synonyms: perimeter , circumference Antonyms: center", "the external surface of a body.Antonyms: center", "the edge or outskirts, as of a city or urban area.", "the relatively minor, irrelevant, or superficial aspects of the subject in question:The preliminary research did not, of course, take me beyond the periphery of my problem.", "Anatomy.the area in which nerves end."]}]