bioweapon vs biological weapon

bioweapon and biological weapon both are nouns.

Word	Noun	Adjective	Verb	Adverb
bioweapon	Yes	No	No	No
biological weapon	Yes	No	No	No

As nouns, bioweapon and biological weapon are synonyms defined as:

bioweapon and biological weapon: any weapon usable in biological warfare

Other synonyms of bioweapon include bioarm.

bioweapon (noun)	biological weapon (noun)
any weapon usable in biological warfare	any weapon usable in biological warfare