Roman Catholicism

American  

noun

1. the faith, practice, and system of government of the Roman Catholic Church.

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Roman Catholicism British  

noun

1. the beliefs, practices, and system of government of the Roman Catholic Church

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Etymology

Origin of Roman Catholicism

First recorded in 1815–25

Example Sentences

Why does Roman Catholicism prohibit other faiths from taking Communion?

From The Wall Street Journal • Apr. 13, 2026

He lived at The College, in Littlemore, during the 1840s, which is where he controversially converted to Roman Catholicism in 1845.

From BBC • Aug. 10, 2025

“The reason I moved from right to left is not because my fundamental values changed,” said Sitman, who has converted to Roman Catholicism.

From Los Angeles Times • Dec. 18, 2024

It also favors LGBTQ+ rights, a rarity among the major parties in a country that is a stronghold of conservative Roman Catholicism.

From Seattle Times • Sep. 30, 2023

Roman Catholicism was the dominant religion of Poland, and religion was very much a part of the public school I attended.

From "The Boy on the Wooden Box" by Leon Leyson