What is "orientalis"

Orientalis, oriental in Latin, may refer to :

• a Yersinia pestis biovar thought to correspond to the third plague pandemic

and also:

• Francia Orientalis, the realm allotted to Louis the German by the 843 Treaty of Verdun
• Marcha Orientalis, the Latin name for the March or Margraviate of Austria
• Opera Orientalis, a military intelligence operation carried out during the Yugoslav Wars in August 1991
• Patrologia Orientalis, an attempt to create a comprehensive collection of the writings by eastern Church Fathers in Syriac, Armenian and Arabic, Coptic, Ge'ez, Georgian, and Slavonic
• Terra orientalis (Osterland), a historical region in Germany situated between the Elbe and Saale rivers to the north of Pleissnerland