Referring to the efferent connection of the striatum with the substantia nigra.

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stri·a·to·ni·gral strī-.āt-ə-'nī-grəl adj connecting the corpus striatum and substantia nigra <\striatonigral axons>

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stri·a·to·ni·gral (stri″ə-to-niґgrəl) projecting from the corpus striatum to the substantia nigra.

Medical dictionary. 2011.

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