1. A side bond that links two adjacent chains of atoms in a complex molecule
   "The formation of cross-links increased the polymer's strength";
   - cross-linkage

1. Join by creating covalent bonds (of adjacent chains of a polymer or protein)
   "The scientist cross-linked the polymer chains to increase the material's strength"

Derived forms: cross-links, cross-linked, cross-linking

Type of: bond, chemical bond, conjoin [formal], join

Encyclopedia: Cross-link