cross-link vs chemical bond

cross-link and chemical bond both are nouns.

Word	Noun	Adjective	Verb	Adverb
cross-link	Yes	No	Yes	No
chemical bond	Yes	No	No	No

As nouns, chemical bond is a hypernym of cross-link; that is, chemical bond is a word with a broader meaning than cross-link:

cross-link: a side bond that links two adjacent chains of atoms in a complex molecule
chemical bond: an electrical force linking atoms

Other hypernyms of cross-link include bond.

cross-link (noun)	chemical bond (noun)
a side bond that links two adjacent chains of atoms in a complex molecule	an electrical force linking atoms

cross-link (verb)	chemical bond (verb)
join by creating covalent bonds (of adjacent chains of a polymer or protein)