locus niger

英 美
  • [医]黑斑,黑质
  • locus n.场所;所在地;【数】轨迹,矢量图
  • niger n.尼日尔(非洲中西部国家)
Noun:
  1. a layer of deeply pigmented grey matter in the midbrain; associated with the striate body; is involved in metabolic disturbances associated with Parkinson's disease and with Huntington's disease