transcription, транскрипция: [ səb-ˌstan(t)-shē-ə-ˈnī-grə, -ˈni- ]
noun
( plural sub·stan·ti·ae ni·grae -chē-ˌē-ˈnī-(ˌ)grē, -ˈni-)
Etymology: New Latin, literally, black substance
Date: circa 1882
: 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