spontaneous generation vs autogenesis

spontaneous generation and autogenesis both are nouns.

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

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

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

Other synonyms of spontaneous generation include abiogenesis, autogeny.

spontaneous generation (noun)	autogenesis (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