Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The midbrain.
from The Century Dictionary.
- noun The midbrain; a segment of the encephalon consisting essentially of the corpora quadrigemina or optic lobes and the crura cerebri. See
brain . Also mesencephal, mesocephalon.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Anat.) The middle segment of the brain; the midbrain. Sometimes abbreviated to
mesen . Seebrain .
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A part of the brain located
rostral to thepons andcaudal to thethalamus and the basal ganglia, composed of thetectum (dorsal portion) and thetegmentum (ventral portion).
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun the middle portion of the brain
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
From Latin, from Ancient Greek μέσος (mesos, "middle") + ἐγκέφαλος (enkephalos, "cephalon, brain"); see also cephalon.
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