dysgenesis vs sterility

dysgenesis and sterility both are nouns.

Word	Noun	Adjective	Verb	Adverb
dysgenesis	Yes	No	No	No
sterility	Yes	No	No	No

As nouns, sterility is a hypernym of dysgenesis; that is, sterility is a word with a broader meaning than dysgenesis:

dysgenesis: infertility between hybrids
sterility: the state of being unable to produce offspring; in a woman it is an inability to conceive; in a man it is an inability to impregnate

Other hypernyms of dysgenesis include infertility.

dysgenesis (noun)	sterility (noun)
infertility between hybrids	the state of being unable to produce offspring; in a woman it is an inability to conceive; in a man it is an inability to impregnate
	(of non-living objects) the state of being free of pathogenic organisms