1) Bio defence 1) Biodefence 2) Biological defence 3) Biological defense 4) Defence 5) Defense 6) Defensive measure 
Biodefense refers to short term, local, usually military measures to restore biosecurity to a given group of persons in a given area who are, or may be, subject to biological warfare— in the civilian terminology, it is a very robust biohazard response. It is technically possible to apply biodefense measures to protect animals or plants, but this...