encephalon

The lessening of the blood supply to the encephalon is rather the accompaniment than the cause of sleep.

The Cerebrum or Great Brain lies above the plane of the tentorium, and forms much the largest division of the encephalon.

The state of the encephalon in those patients in whom spurious hydrocephalus occurs is interesting.

Let me also add that the weight of the encephalon varies enormously according to individuals.

Encephalon -um: the brain, or that part of the head containing it.