The Enchiridion (full title: Enchiridion symbolorum, definitionum et declarationum de rebus fidei et morum; "A handbook of symbols, definitions and declarations on matters of faith and morals"), usually translated as The Sources of Catholic Dogma, is a compendium of texts on Catholic theology and morality.
This compendium was first published in 1854, and has been updated many times in subsequent editions since.
The name Enchiridion (from Greek cheir, "hand") means "handbook".
It was originally published as Enchiridion symbolorum et definitionum, quae de rebus fidei et morum a conciliis oecumenicis et summis pontificibus emanarunt.
The work is today published as Enchiridion symbolorum, definitionum et declarationum de rebus fidei et morum.