[{"Bold_text": "adjective", "List Items": ["pertaining to or involving atomic weapons:nuclear war.", "operated or powered by atomic energy:a nuclear submarine.", "(of a nation or group of nations) having atomic weapons.", "of, relating to, or forming a nucleus.", "of, relating to, or like the nuclear family nuclear family:nuclear bonds."]}, {"Bold_text": "noun", "List Items": ["nuclear energy nuclear energy:switching to nuclear as a power source."]}]