essential tremor

英 美
  • 家族遗传性震颤
  • essential adj.本质的;必要的;重要的n.要素;必需品
  • tremor n.震动;颤动;战栗;兴奋;地震
Noun:
  1. tremor of unknown cause (usually of the hands and head) that develops in older people; often mistaken for Parkinsonism but is not life-threatening and can usually be kept under control