splenium

Borrowed from Latin splēnium (“plaster, patch”), from Ancient Greek σπληνῐ́ον (splēníon, “pad or compress of linen”).

• IPA^(key): /ˈspliː.ni.əm/
• Rhymes: -iːniəm

splenium (plural spleniums or splenia)

1. (anatomy, neurology) The thick posterior part of the corpus callosum of the brain.

• “splenium”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.

• unsimple

From Ancient Greek σπληνῐ́ον (splēníon, “pad or compress of linen”), from σπλήν (splḗn, “milt, spleen”) +‎ -ῐον (-ion, “diminutive suffix”).

• (Classical) IPA^(key): /ˈspleː.ni.um/, [ˈs̠pɫ̪eːniʊ̃ˑ]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈsple.ni.um/, [ˈsplɛːnium]

splēnium n (genitive splēniī or splēnī); second declension

1. (botany) Miltwaste, spleenwort.
2. A plaster or patch, for its likeness to the spleen in form and color.

Second-declension noun (neuter).

¹Found in older Latin (until the Augustan Age).

• “splenium”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press