heterometabolism vs heterometaboly

heterometabolism and heterometaboly both are nouns.

Word	Noun	Adjective	Verb	Adverb
heterometabolism	Yes	No	No	No
heterometaboly	Yes	No	No	No

As nouns, heterometabolism and heterometaboly are synonyms defined as:

heterometabolism and heterometaboly: development of insects with incomplete metamorphosis in which no pupal stage precedes maturity

heterometabolism (noun)	heterometaboly (noun)
development of insects with incomplete metamorphosis in which no pupal stage precedes maturity	development of insects with incomplete metamorphosis in which no pupal stage precedes maturity