substantia innominata

English

Noun

substantia innominata (plural substantia innominatas)

  1. (anatomy) The substantia innominata, also innominate substance or substantia innominata of Meynert (Latin for unnamed substance), is a series of layers in the human brain consisting partly of gray and partly of white matter, which lies below the anterior part of the thalamus and lentiform nucleus.
    Synonym: innominate substance