Noun: mesencephalon ,me,sen'se-fu,lón or ,me,sen'se-fu-lun or ,mee-zun'se-fu,lón
- The middle portion of the brain
"The mesencephalon contains important nuclei involved in visual and auditory processing";
- midbrain
Derived forms: mesencephalons
Type of: neural structure
Part of: brain, encephalon
Encyclopedia: Mesencephalon