from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The portion of the brain, consisting of the medulla oblongata, pons Varolii, and midbrain, that connects the spinal cord to the forebrain and cerebrum.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The part of the brain that connects the spinal cord to the forebrain and cerebrum.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus
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