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Meaning of cross-link

cross-link

Pronunciation: (n.krôs'lingk", kros'-v.krôs'lingk', kros'-), [key]
— Chem. Chem.
—n.
  1. a bond, atom, or group linking the chains of atoms in a polymer, protein, or other complex organic molecule.
—v.t.
  1. to attach by a cross-link.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.