Definition of metathalamus in US English:

metathalamus

noun

Anatomy
  • The part of the diencephalon caudal and ventral to the thalamus, consisting of the lateral and medial geniculate bodies.

Origin

Late 19th century; earliest use found in Lewellys Barker (1867–1943). From German Metathalamus from meta- + Thalamus.

Pronunciation

metathalamus

/ˌmɛtəˈθaləməs/