(weaponry) Abbreviation of nuclear weapon, biological weapon and chemical weapon.

(weaponry) Abbreviation of nuclear, biological, chemical.

Initialism of National Broadcasting Company: U.S. television and radio network. / (historical) Abbreviation of National Biscuit Company: U.S. food company, now Nabisco.

plural of NBC

plural of NBC suit

(military) A protective suit used in the military to avoid contact with and contamination by radioactive, biological or chemical substances.

Initialism of New Brunswick Court of Appeal.