tegmentum
noun
teg·men·tum
teg-ˈmen-təm 
plural tegmenta
teg-ˈmen-tə
: an anatomical covering : tegmen
especially
: the part of the ventral midbrain above the substantia nigra formed of longitudinal white fibers with arched transverse fibers and gray matter
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Hobson and McCarley proposed a complex physiological model in which the activation is driven by the giant cells of the pontine tegmentum.
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Neuroskeptic, Discover Magazine, 7 Apr. 2010
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Neuroskeptic, Discover Magazine, 7 Apr. 2010
Cite this Entry
“Tegmentum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tegmentum. Accessed 15 Jul. 2025.
Copy CitationMedical Definition
tegmentum
noun
teg·men·tum
teg-ˈment-əm
plural tegmenta
-ˈment-ə
: an anatomical covering : tegmen
especially
: the part of the ventral midbrain above the substantia nigra formed of longitudinal white fibers with arched transverse fibers and gray matter
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