[{"Bold_text": "abbreviation for", "List Items": ["mixed reality mixed reality.", "motivation research motivation research; motivational research motivational research."]}, {"Bold_text": null, "List Items": ["milliroentgen; milliroentgens."]}, {"Bold_text": "abbreviation for", "List Items": ["mister: a title of respect prefixed to a man's name or position:Mr. Lawson; Mr. President.", "a title prefixed to a mock surname that is used to represent possession of a particular attribute, identity, etc., especially in an idealized or excessive way:Mr. Democrat; Mr. Perfect; Mr. Macho."]}]