[{"Bold_text": "noun", "List Items": ["Meteorology.a cloud of a class characterized by thin white filaments or narrow bands and a composition of ice crystals: of high altitude, about 20,000–40,000 feet (6000–12,000 meters).a cirriform cloud.", "a cloud of a class characterized by thin white filaments or narrow bands and a composition of ice crystals: of high altitude, about 20,000–40,000 feet (6000–12,000 meters).", "a cirriform cloud.", "Botany.a tendril.", "Zoology.a filament or slender appendage serving as a foot, tentacle, barbel, etc.the male copulatory organ of flatworms and various other invertebrates.", "a filament or slender appendage serving as a foot, tentacle, barbel, etc.", "the male copulatory organ of flatworms and various other invertebrates."]}]