The Collaborative International Dictionary of English v.0.48:

cross-link \cross-link\ v. t. [imp. & p. p. cross-linked, p.
   pr. & vb. n. cross-linking.] (Chem., Biochem.)
   to create cross links in; -- of polymeric molecules.
   [PJC]

The Collaborative International Dictionary of English v.0.48:

cross-linked \cross-linked\ a. (Chem., Biochem.)
   containing cross-links; -- of polymeric molecules.

   Syn: cross-linkage.
        [PJC]