The anterior portion of the brain

• The part of the brain that develops from the anterior part of the neural tube

Wiktionary Word definitions in Wiktionary
n. (context neuroanatomy English) forebrain.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Prosencephalon \Pros`en*ceph"a*lon\, n. [NL., fr. Gr. ? toward, near to + E. encephalon.] [Sometimes abbreviated to proen.] (Anat.) The anterior segment of the brain, including the cerebrum and olfactory lobes; the forebrain. The cerebrum. --Huxley.

WordNet Word definitions in WordNet
n. the anterior portion of the brain; the part of the brain that develops from the anterior part of the neural tube [syn: forebrain ] [also: prosencephala (pl)]