cerebrum

n. upper front part of the brain associated with voluntary and conscious properties

The telencephalon (IPA: ) is the name for the forebrain, a large region within the brain to which many functions are attributed. Many people refer to it as the cerebrum; however, it is technically referred to as the telencephalon.As a more technical definition, the telencephalon refers to the cerebral hemispheres and other, smaller structures within the brain, although the telencephalon is one of the larger divisions (in terms of number). It is the anterior-most embryological division of the brain that develops from the prosencephalon.
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Cerebrum /cer·e·brum/ the main portion of the brain, occupying the upper part of the cranial cavity; its two hemispheres, united by the corpus [more]Cerebrum - Community and Resources

Noun
1. anterior portion of the brain consisting of two hemispheres; dominant part of the brain in humans
(hypernym) neural structure
(part-holonym) telencephalon
(part-meronym) fissure of Rolando, Rolando's fissure, central sulcus, sulcus centralis

(n.)
The anterior, and in man the larger, division of the brain; the seat of the reasoning faculties and the will. See Brain.