[sub.stan.tia ni.gra] n, pl sub.stan.ti.ae ni.grae [NL, lit., black substance] (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
SUBSTANTIA NIGRA
Meaning of SUBSTANTIA NIGRA in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012