0 abbreviation for National Broadcasting Company: a company that broadcasts television programmes in the US
1 abbreviation for nuclear, biological, chemical: used to refer to dangerous substances such as radiation, harmful bacteria, or poisonous chemicals, especially in connection with weapons :
The term NBC has been replaced by CBRN, with the addition of a new threat, radiological weapons.
The multi-layered, rubberized NBC kit they wore made them sweat.
It was recommended that British soldiers had three NBC suits.
