substantia nigra
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About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.sub·stan·tia ni·gra
noun \səb-ˌstan(t)-shē-ə-ˈnī-grə, -ˈni-\ plural sub·stan·ti·ae ni·grae \-chē-ˌē-ˈnī-(ˌ)grē, -ˈni-\
Definition of SUBSTANTIA NIGRA
: a layer of deeply pigmented gray matter situated in the midbrain and containing the cell bodies of a tract of dopamine-producing nerve cells whose secretion tends to be deficient in Parkinson's disease
Origin of SUBSTANTIA NIGRA
New Latin, literally, black substance
First Known Use: circa 1882
sub·stan·tia ni·gra
noun \səb-ˌstan-chē-ə-ˈnī-grə, -ˈnig-rə\ (Medical Dictionary)plural ; sub·stan·ti·ae ni·grae \-chē-ˌē-ˈnī-(ˌ)grē, -ˈnig-(ˌ)rē\ (audio pronunciation) (audio pronunciation)
Medical Definition of SUBSTANTIA NIGRA
: a layer of deeply pigmented gray matter situated in the midbrain and containing the cell bodies of a tract of dopamine-producing nerve cells whose secretion tends to be deficient in Parkinson's disease
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