# magisterium

> English word · Noun · frequency rank #76,089

## Definitions
1. The teaching authority or office of the Roman Catholic Church.
2. An authoritative statement.
3. The philosopher's stone.

## Etymology
Learned borrowing from Latin magisterium (“office of a president, chief; magisterium”), from magister (“master”). Equivalent to magister + -ium. Doublet of magistery.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/magisterium