[{"Bold_text": "noun", "List Items": ["Usuallynads.a testicle."]}, {"Bold_text": null, "List Items": ["nicotinamide adenine dinucleotide: a coenzyme, C21H27N7O14P2, involved in many cellular oxidation-reduction reactions."]}, {"Bold_text": "abbreviation for", "List Items": ["National Academy of Design."]}]