ground zero

(redirected from Ground 0)
Also found in: Dictionary, Thesaurus, Medical.
Related to Ground 0: ground zero

ground zero

the name given to the devastated site of the collapsed World Trade Center towers in New York after September 11 2001

ground zero

[′grau̇nd ¦zir·ō]
(ordnance)
The point on the surface of the earth (including water) at which, above which, or below which an atomic detonation has actually occurred. Also known as surface zero.