adjective Sir·mi·an \ˈsərmēən\

Definition of Sirmian

  1. :  of or relating to the city of Sirmium in the eastern and now Yugoslav part of the Roman province of Pannonia; especially :  of or relating to any of four councils held there in the fourth century or to the Arian creeds issued by them

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Origin and Etymology of sirmian

Sirmium + English -an

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a brief usually trivial fact

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