immaculism en · NOUN
Etymology
From immaculate + -ism.
Meanings
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(uncountable) Belief in the Immaculate Conception of the Virgin Mary.
Although the Dominicans continuously disapproved of immaculism, the conflict became considerably fiercer in the aftermath of the Council of Basel (1431–1449), when the Immaculate Conception was elevated to a dogma.
2020, Racha Kirakosian, “Introduction”, in The Life of Christina of Hane, →ISBN, page xxx: