American Heritage Dictionary
Century Dictionary
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GNU Webster's 1913
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Elsewhere on the web
Patients with Parkinson's disease suffer degeneration of certain neurons that reside in an area of the brain called the substantia nigra and project into the striatum.— Health News from Medical News Today
In a subsequent study published in August 2008, the consortium reported that eight patients who died from the disease had substantial loss of neurons in the midbrain area known as the substantia nigra.— PhysOrg.com - latest science and technology news stories
- It occurs as a result of a loss of nerve cells in the part of the brain known as the substantia nigra.
However, for the latter structure as well as the substantia nigra, median raphe and SLD, we did not observe a change in the number of Fos-GAD neurons in PSR animals compared to the PSD and PSC ones.— PLoS ONE Alerts: New Articles
Slow pain is transmitted via slower type C fibres to laminae II and III of the dorsal horns, together known as the substantia gelatinosa.— Citizendium, the Citizens' Compendium - Recent changes [en]

Century Dictionary (1)
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