substantia nigra

noun sub·stan·tia ni·gra \ səb-ˌstan(t)-shē-ə-ˈnī-grə , -ˈni- \
Updated on: 28 Feb 2018

Definition of substantia nigra

plural substantiae nigrae play \səb-ˌstan(t)-chē-ˌē-ˈnī-(ˌ)grē, -ˈni-\
: 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 and Etymology of substantia nigra

New Latin, literally, black substance


Medical Dictionary

substantia nigra

noun sub·stan·tia ni·gra \ səb-ˌstan-chē-ə-ˈnī-grə , -ˈnig-rə \

medical Definition of substantia nigra

plural substantiae nigrae play \-chē-ˌē-ˈnī-(ˌ)grē, -ˈnig-(ˌ)rē\
: 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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