[{"Bold_text": "verb (used without object)", "List Items": ["to shake involuntarily with quick, short movements, as from fear, excitement, weakness, or cold; quake; quiver.Synonyms: shudder", "to be troubled with fear or apprehension.", "(of things) to be affected with vibratory motion.Synonyms: oscillate", "to be tremulous, as light or sound:His voice trembled."]}, {"Bold_text": "noun", "List Items": ["the act of trembling.", "a state or fit of trembling.", "trembles,(used with a singular verb)Pathology. milk sickness milk sickness.Veterinary Pathology.a toxic condition of cattle and sheep caused by the eating of white snakeroot and characterized by muscular tremors.", "Pathology. milk sickness milk sickness.", "Veterinary Pathology.a toxic condition of cattle and sheep caused by the eating of white snakeroot and characterized by muscular tremors."]}]