Index Expurgatorius

[in-deks ik-spur-guh-tawr-ee-uh s, -tohr-] /ˈɪn dɛks ɪkˌspɜr gəˈtɔr i əs, -ˈtoʊr-/
noun, plural Indices Expurgatorii
[in-duh-seez-ikspur-guh-tawr-ee-ahy, -tohr-] /ˈɪn dəˌsizˌɪkspɜr gəˈtɔr iˌaɪ, -ˈtoʊr-/ (Show IPA).
Roman Catholic Church
1.
a list of books now included in the Index Librorum Prohibitorum, forbidden to be read except from expurgated editions.
Origin
< Neo-Latin: literally, expurgatory index