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。

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Google翻訳 / DeepL翻訳

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。

詳細

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.

Google翻訳 / DeepL翻訳

詳細

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."

Google翻訳 / DeepL翻訳