germ warfare vs bioattack

germ warfare and bioattack both are nouns.

Word	Noun	Adjective	Verb	Adverb
germ warfare	Yes	No	No	No
bioattack	Yes	No	No	No

As nouns, bioattack is a hypernym of germ warfare; that is, bioattack is a word with a broader meaning than germ warfare:

germ warfare: the use of harmful bacteria as a weapon
bioattack: the use of bacteria or viruses or toxins to destroy men and animals or food

Other hypernyms of germ warfare include biologic attack, biological attack, biological warfare, BW.

germ warfare (noun)	bioattack (noun)
the use of harmful bacteria as a weapon	the use of bacteria or viruses or toxins to destroy men and animals or food