SINCE 1828
substantia nigra
noun
sub·stan·tia ni·gra
| \ səb-ˌstan(t)-shē-ə-ˈnī-grə
, -ˈni-\
, -ˈni-\
plural substantiae nigrae\ səb-ˌstan(t)-chē-ˌē-ˈnī-(ˌ)grē
, -ˈni- \
, -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
Keep scrolling for more
Keep scrolling for more
More Definitions for substantia nigra
substantia nigra
noun
sub·stan·tia ni·gra
| \ səb-ˌstan-chē-ə-ˈnī-grə
, -ˈnig-rə
\
, -ˈnig-rə
\
plural substantiae nigrae\ -chē-ˌē-ˈnī-(ˌ)grē
, -ˈnig-(ˌ)rē
\
, -ˈnig-(ˌ)rē
\
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
Comments on substantia nigra
What made you want to look up substantia nigra? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
A Green Quiz
-
- What is the best definition of green-eyed monster?
Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
-
A Green Quiz
How many questions can you answer about the word "green"?
Take the quiz -
Return of Name that Color!
Additional colors! More obscure than before!
Take the quiz -
True or False?
Test your knowledge - and maybe learn something along the way.
Take the quiz -
SCRABBLE® Sprint
SCRABBLE® fans, sharpen your skills!
Play the game
Share substantia nigra
Resources for substantia nigra