chelate compound vs heterocycle

chelate compound and heterocycle both are nouns.

Word	Noun	Adjective	Verb	Adverb
chelate compound	Yes	No	No	No
heterocycle	Yes	No	No	No

As nouns, heterocycle is a hypernym of chelate compound; that is, heterocycle is a word with a broader meaning than chelate compound:

chelate compound: a heterocyclic compound having a metal ion attached by coordinate bonds to at least two nonmetal ions
heterocycle: a compound containing a heterocyclic ring

Other hypernyms of chelate compound include heterocyclic, heterocyclic compound.

chelate compound (noun)	heterocycle (noun)
a heterocyclic compound having a metal ion attached by coordinate bonds to at least two nonmetal ions	a ring of atoms of more than one kind; especially a ring of carbon atoms containing at least one atom that is not carbon
	a compound containing a heterocyclic ring