Agent Orange 
noun [mass noun]
A defoliant chemical used by the US in the Vietnam War.U.S. military forces sprayed Agent Orange and other defoliants over parts of South Vietnam and Cambodia beginning in 1962, she said....
- Likely as a result of exposure to heavy doses of Agent Orange defoliant in Vietnam, he contracted a virulent form of leukemia that would pull him down in his early 60s.
- Much of the Vietnamese countryside was defoliated using poisons like Agent Orange, so toxic that even the soldiers who did the spraying suffered long-term damage to their health.
- nickel brass
- nickel bronze
- nickel-cadmium battery
- nickel carbonyl
- nickel-chlorite
- nickel-coat
- nickel defence
- nickel defense
- nickel-dime
- nickel-face
- nickel glance
- nickel green
- nickel-gymnite
- nickel hydride
- nickelian
- nickelic
- nickelide
- nickeliferous
- nickeline
- nickel-in-the-slot
- nickel-iron
- nickelisation
- nickelite
- nickelization
- nickel metal hydride