English Dictionary

ground zero

IPA（発音記号）

/ˌɡɹaʊnd ˈzɪəɹəʊ/

名詞

可算名詞 不可算名詞 広義 比喩的用法

Originally, the point on the land or water surface below which a nuclear bomb detonates in the air; now also the point on such a surface at or above the detonation.

日本語の意味

（元々の意味）原子爆弾が空中で爆発する際、その下に位置する陸地や水面の一点。 / （現在の意味）爆発地点とされる、陸地または水面上のその場所。

They determined ground zero as the point on the surface directly beneath where the nuclear bomb detonated in the air.

彼らは、空中で核爆弾が爆発した直下の地表点を爆心地として特定した。

意味（1）

Originally, the point on the land or water surface below which a nuclear bomb detonates in the air; now also the point on such a surface at or above the detonation.

Some of the construction details (reinforcing rod splices, for example) [in Hiroshima and Nagasaki, Japan] were often poor, and much of the concrete was definitely weak; thus some reinforced concrete buildings collapsed and suffered structural damage when within 2,000 feet of ground zero, and some internal wall paneling was demolished even up to 3,800 feet.

意味（2）

(by extension) The location of any disaster or violent assault.

This is ground zero, she said. If regulators don't adopt a zero tolerance for violations of standards then what we will have are places that are going to have unacceptable environmental damage.

意味（3）

(figuratively) The point at which something begins.

James Meredith's forced admission was a milestone in upending the old order in America's most segregated state, a kind of race relations ground zero.

ground zeroes （ plural ）