rotated index
n.
An index that contains an entry for each nontrivial word in a title, with the entry words alphabetized and centered on the page surrounded by the rest of the title.
Notes
As much of the title as possible appears on either side of the entry word; long titles may be truncated at the beginning or the end. A stop list may be used to suppress entries for words with no value for retrieval, such as articles and conjunctions, or a go list may be used to generate entries for specific words.
