ˈfōsh(ē)ən adjective
Usage: usually capitalized
Etymology: Photi us died A.D. 891 Patriarch of Constantinople + English -an
: of or relating to the patriarch Photius noted for precipitating an early schism between the Eastern and Western churches by challenging the claim of the Roman see to supremacy and charging the Latin churches with heretical innovations (as the credal phrase “and the son”)