[{"Bold_text": "noun", "List Items": ["Astronomy.Also calleddiffuse nebula.a cloud of interstellar gas and dust.Compare dark nebula dark nebula, emission nebula emission nebula, reflection nebula reflection nebula.(formerly) any celestial object that appears nebulous ,hazy, or fuzzy, and extended in a telescope view.", "Also calleddiffuse nebula.a cloud of interstellar gas and dust.Compare dark nebula dark nebula, emission nebula emission nebula, reflection nebula reflection nebula.", "(formerly) any celestial object that appears nebulous ,hazy, or fuzzy, and extended in a telescope view.", "Pathology.a faint opacity in the cornea.cloudiness in the urine.", "a faint opacity in the cornea.", "cloudiness in the urine.", "any liquid medication prepared for use as a spray."]}]