cerebrum
main part of brain / forebrain
Noun
pl: cerebra
This term refers specifically to the largest part of the brain, distinguishing it from the cerebellum and the brainstem. It is associated with the highest levels of cognitive processing, including reasoning, planning, and sensory perception. In medical and anatomical contexts, it is treated as a singular organ. While it consists of two hemispheres, the word itself is used as a singular count noun when referring to the structure as a whole.