Definition of splenium in US English:

splenium

noun

Anatomy
  • The thick posterior part of the corpus callosum of the brain.

    • ‘Beneath the splenium of the corpus callosum, the dentate gyrus becomes flattened and smooth and continues on to the dorsal surface of the corpus callosum as the thin gyrus fasciolaris.’
    • ‘Above the splenium of the corpus callosum, the cingulate sulcus turns abruptly upwards to reach the superior margin of the hemisphere.’
    • ‘The great cerebral vein can be seen curving below the splenium of the corpus callosum to empty into the straight sinus.’
    • ‘For example, the analysis found a relative increase in the distance between the superior colliculus and the splenium of the corpus collosum in patients.’
    • ‘The two internal cerebral veins join beneath the splenium of the corpus callosum to form the great cerebral vein, but the site of union is not visible in this preparation.’

Origin

Mid 19th century: from Latin.

Pronunciation

splenium

/ˈsplēnēəm/