myelencephalon

American

[mahy-uh-len-sef-uh-lon] / ˌmaɪ ə lɛnˈsɛf əˌlɒn /

noun

Anatomy.

the posterior section of the hindbrain comprising the medulla oblongata.

myelencephalon British

/ ˌmaɪɪlɛnˈsɛfəˌlɒn, ˌmaɪɪlɛnsəˈfælɪk /

noun

Nontechnical name: afterbrain. the part of the embryonic hindbrain that develops into the medulla oblongata

"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

Other Word Forms

Derived Forms

myelencephalic

adjective

Inflected Forms

noun

Etymology

Origin of myelencephalon

First recorded in 1835–45; myel- + encephalon

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The myelencephalon corresponds to the adult structure known as the medulla oblongata.

From Textbooks • Jun. 19, 2013

The brain stem includes the midbrain, pons, and medulla, which correspond to the mesencephalon, metencephalon, and myelencephalon.

From Textbooks • Jun. 19, 2013

The rhombencephalon develops into the metencephalon and myelencephalon.

From Textbooks • Jun. 19, 2013

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

From Textbooks • Jun. 19, 2013

A constriction also occurs in the hind vesicle or rhombencephalon, dividing it into an anterior part, the metencephalon, from which the cerebellum is developed, and a posterior or myelencephalon, the primitive medulla oblongata.

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

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023