autogeny vs spontaneous generation

autogeny and spontaneous generation both are nouns.

Word	Noun	Adjective	Verb	Adverb
autogeny	Yes	No	No	No
spontaneous generation	Yes	No	No	No

As nouns, autogeny and spontaneous generation are synonyms defined as:

autogeny and spontaneous generation: a hypothetical organic phenomenon by which living organisms are created from nonliving matter

Other synonyms of autogeny include abiogenesis, autogenesis.

autogeny (noun)	spontaneous generation (noun)
a hypothetical organic phenomenon by which living organisms are created from nonliving matter	a hypothetical organic phenomenon by which living organisms are created from nonliving matter