Meaning & use
substantia nigra
A layer of brain tissue in the midbrain that produces dopamine and helps control movement.
See it in a sentence
Loss of dopamine-producing cells in the substantia nigra is a hallmark of Parkinson's disease.
Researchers imaged the substantia nigra to track changes in the patient's brain over time.
A note on using this word
Latin for 'black substance,' named for its dark pigmentation; central to Parkinson's disease research.
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