neocortex

The neocortex (Latin for "new bark" or "new rind") is a part of the brain of mammals. It is the top layer of the cerebral hemispheres, 2-4 mm thick, and made up of six layers, labelled I to VI (with VI being the innermost and I being the outermost). The neocortex is part of the cerebral cortex (along with the archicortex and paleocortex — which are cortical parts of the limbic system). It is involved in higher functions such as sensory perception, generation of motor commands, spatial reasoning, and, in humans: conscious thought, and language. Other names for the neocortex include neopallium ("new mantle") and isocortex ("equal rind").
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Neocortex /neo·cor·tex/ the newer, six-layered portion of the cerebral cortex, showing the most highly evolved stratification and organization. Cf. [more]Neocortex - Community and Resources

Noun
1. the cortical part of the neencephalon
(synonym) neopallium
(hypernym) cerebral cortex, cerebral mantle, pallium, cortex

n. neocortex