prosencephalon Meaning, Definition & Usage

  1. noun the anterior portion of the brain; the part of the brain that develops from the anterior part of the neural tube
    forebrain.

WordNet

Pros`en*ceph"a*lon noun
Etymology
NL., fr. Gr. toward, near to + E. encephalon.
Definitions
  1. (Anat.) (a) The anterior segment of the brain, including the cerebrum and olfactory lobes; the forebrain. (b) The cerebrum. Huxley.

Webster 1913