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
   - nucleus niger, locus niger

Derived forms: substantia nigras

Type of: neural structure

Part of: mesencephalon, midbrain

Encyclopedia: Substantia nigra

• Accipitriformes
• accipitrine
• acclaim
• acclamation
• acclimate
• acclimation
• acclimatisation
• acclimatise
• acclimatization
• acclimatize
• acclivitous
• acclivity
• accolade
• accommodate
• accommodating
• accommodating IOL
• accommodating lens implant
• accommodatingly
• accommodation
• accommodation endorser
• accommodation ladder
• accommodation reflex
• accommodational
• accommodative
• accommodator