Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The most anterior of the three primary regions of the embryonic brain from which the telencephalon and diencephalon develop.
  • noun The segment of the adult brain that develops from the embryonic forebrain and includes the cerebrum, thalamus, and hypothalamus.

from The Century Dictionary.

  • noun The foremost cerebral segment; the prosencephalon; hence, loosely, some anterior division of the brain. See cut under encephalon.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Anat.) The anterior of the three principal divisions of the brain, including the prosencephalon and thalamencephalon. Sometimes restricted to the prosencephalon only. See brain.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun anatomy The anterior part of the brain, including the cerebrum, thalamus, and hypothalamus.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the anterior portion of the brain; the part of the brain that develops from the anterior part of the neural tube

Etymologies

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Examples

  • In reading, one's forebrain is fully engaged; when it disengages, reading stops.

    Saying Something 2010

  • New research finds that nitric oxide accumulation in the brain's basal forebrain is both necessary and sufficient to produce sleep, providing a completely new basis for developing drugs that help people stay awake -- or, conversely, sleep.

    Headline of the day 2006

  • "It seems that now, finally, recognition has arrived at Werner Herzog's feet, and for an inveterate, lifelong Herzogian (alright, since adolescence), his current presence in the cultural forebrain is something of a vindication."

    GreenCine Daily: Appreciation. Werner Herzog. 2006

  • Robertson RT, Gallardo KA, Claytor KJ, Ha DH, Ku KH, et al. (1998) Neonatal treatment with 192 IgG-saporin produces long-term forebrain cholinergic deficits and reduces dendritic branching and spine density of neocortical pyramidal neurons.

    PLoS ONE Alerts: New Articles Nyresa C. Alves et al. 2010

  • The forebrain, which is normally divided such that we have a left and a right brain—the left and right cerebral hemispheres—is fused into a single unitary structure.

    There's a great piece Jenny Davidson 2005

  • The forebrain, which is normally divided such that we have a left and a right brain—the left and right cerebral hemispheres—is fused into a single unitary structure.

    Archive 2005-03-01 Jenny Davidson 2005

  • From the lower portion of the most forward portion of the forebrain are a pair of outgrowths which received the nerves from the nostrils and are therefore concerned with the sense of smell.

    The Human Brain Asimov, Isaac 1963

  • The cerebrum is part of the forebrain, which is also made up of the diencephalon.

    Recently Uploaded Slideshows 2008

  • The cerebrum is part of the forebrain, which is also made up of the diencephalon.

    Recently Uploaded Slideshows 2008

  • The cerebrum is part of the forebrain, which is also made up of the diencephalon.

    Recently Uploaded Slideshows 2008

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