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Homoousian

[hoh-moh-oo-see-uh n, -ou-, hom-oh-]
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noun
  1. a member of a 4th-century a.d. church party that maintained that the essence or substance of the Father and the Son is the same (opposed to Heteroousian).
adjective
  1. of or relating to the Homoousians or their doctrine.

Origin of Homoousian

1555–65; < Late Greek homooúsi(os) of the same substance (Greek hom(o)- homo- + ousí(a) substance, essence + -os adj. suffix) + -an
Related formsHo·mo·ou·si·an·ism, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for homoousian

Homoousian

noun
  1. a Christian who believes that the Son is of the same substance as the FatherCompare Homoiousian
adjective
  1. of or relating to the Homoousians
Derived FormsHomoousianism, noun

Word Origin

C16: from Late Greek homoousios of the same substance, from Greek homo- + ousia nature
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012