Last Updated:2025/11/20

(physics) The speed of electromagnetic radiation; in a perfect vacuum it is defined as 299,792,458 metres per second / (colloquial, figuratively) A very rapid speed.

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speed of light

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Source Word

speed of light

Noun
colloquial figuratively
Japanese Meaning
(物理学)電磁放射の速度で、真空中では299,792,458メートル毎秒と定義される速度。 / (口語、比喩的表現)非常に高速な状態や動作、極めて速いスピード。
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光の速度は、星々の間で情報が伝わる速さを制限します。

plural

abbreviation common-gender

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