[{"Bold_text": "verb (used without object)", "List Items": ["to emit sparks.", "to sparkle; flash:a mind that scintillates with brilliance.", "to twinkle, as the stars.", "Electronics.(of a spot of light or image on a radar display) to shift rapidly around a mean position.", "Physics.(of the amplitude, phase, or polarization of an electromagnetic wave) to fluctuate in a random manner.(of an energetic photon or particle) to produce a flash of light in a phosphor by striking it.", "(of the amplitude, phase, or polarization of an electromagnetic wave) to fluctuate in a random manner.", "(of an energetic photon or particle) to produce a flash of light in a phosphor by striking it."]}, {"Bold_text": "verb (used with object)", "List Items": ["to emit as sparks; flash forth."]}]