1. A reference at one place in a work to information at another place in the same work
   "The index included cross-indexes to help readers find specific information";
   - cross-reference

1. Make an index that refers from one point to the next
   "These references are cross-indexed"

Derived forms: cross-indexed, cross-indexes, cross-indexing

Type of: acknowledgment, citation, cite [informal, rare], credit, index, mention, quotation, reference

Encyclopedia: Cross-index