an official list of books which Roman Catholics were forbidden to read or which were to be read only in expurgated editions, as contrary to Catholic faith or morals. The first Index was issued in 1557; it was revised at intervals until abolished in 1966.
Latin, 'index of forbidden books'
Index Librorum Prohibitorum in other Oxford dictionaries
Definition of Index Librorum Prohibitorum in the US English dictionary
Index Librorum Prohibitorum, nearby words in English