heterocycle vs heterocyclic ring

heterocycle and heterocyclic ring both are nouns.

Word	Noun	Adjective	Verb	Adverb
heterocycle	Yes	No	No	No
heterocyclic ring	Yes	No	No	No

As nouns, heterocycle and heterocyclic ring are synonyms defined as:

heterocycle and heterocyclic ring: a ring of atoms of more than one kind; especially a ring of carbon atoms containing at least one atom that is not carbon

heterocycle (noun)	heterocyclic ring (noun)
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 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