biological attack vs bioattack

biological attack and bioattack both are nouns.

Word	Noun	Adjective	Verb	Adverb
biological attack	Yes	No	No	No
bioattack	Yes	No	No	No

As nouns, biological attack and bioattack are synonyms defined as:

biological attack and bioattack: the use of bacteria or viruses or toxins to destroy men and animals or food

Other synonyms of biological attack include biologic attack, biological warfare, BW.

biological attack (noun)	bioattack (noun)
the use of bacteria or viruses or toxins to destroy men and animals or food	the use of bacteria or viruses or toxins to destroy men and animals or food