Definition of palaeocortex in English:

palaeocortex

Pronunciation /ˌpalɪəʊˈkɔːtɛks/ /ˌpeɪlɪəʊˈkɔːtɛks/

noun

Anatomy Zoology
  • The cortex of the palaeopallium; the phylogenetically ancient part of the cerebral cortex that is involved in olfactory function (limited, in higher mammals, to the pyriform lobe).

Origin

Early 20th century. From palaeo- + cortex, after German Palaeocortex.