1. Bioterrorism- (noun) the use of toxic substances to harm citizens of a country for political reasons.

In 2001, 94-year-old Ottilie Lundgren​ died after catching a virus called anthrax. The virus was put into her mail by a bioterrorist.

2. Concept- (noun) an idea

3. Asset- (noun) a helpful resource

​A new car may have assets such as heated seats, a smartphone connection, or a GPS.

4. Scab- (noun) a protective tissue that forms on skin after it has been damaged

5. Dilute- (verb) to make something (usually a liquid) weaker or less powerful

6. Peculiar- (adjective) strange or weird

7. Infectious- (adjective) likely to be spread to other people, animals, or organisms