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mesencephalon

American  
[mes-en-sef-uh-lon, -luhn, mez-] / ˌmɛs ɛnˈsɛf əˌlɒn, -lən, ˌmɛz- /

noun

  • mesencephala,
    plural
  • mesencephalons
    plural
  1. Anatomy. the midbrain.


mesencephalon British  
/ ˌmɛsɛnˈsɛfəˌlɒn /

noun

  1. Nontechnical name: midbrain.  the part of the brain that develops from the middle portion of the embryonic neural tube Compare prosencephalon rhombencephalon

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Nouns

Etymology

Origin of mesencephalon

First recorded in 1840–50; mes- + encephalon

Example Sentences

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There is also a connection of the optic tract to the midbrain, but the mesencephalon is adjacent to the diencephalon, so that is not difficult to imagine.

From Textbooks Jun. 19, 2013

The structures that come from the mesencephalon and rhombencephalon, except for the cerebellum, are collectively considered the brain stem,

From Textbooks Jun. 19, 2013

Whereas prosencephalon and mesencephalon translate into the English words forebrain and midbrain, there is not a word for “four-sided-figure-brain.”

From Textbooks Jun. 19, 2013

The mesencephalon, metencephalon, and myelencephalon become the brain stem.

From Textbooks Jun. 19, 2013

The mesencephalon or mid-brain, when looked at from the dorsal surface, shows a pair of large hollow swellings, the optic lobes or corpora bigemina.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" by Various

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