cross–in·dex verb \ˈkrȯs-ˈin-ˌdeks\
: to index (an item) under a second or under more than one heading
: to supply (as a book) with a cross-referenced index
— cross–index noun
First Known Use of CROSS-INDEX
Seen & Heard
What made you want to look up cross-index? Please tell us where you read or heard it (including the quote, if possible).