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Last Updated：2025/11/29
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Dictionary quizzes to help you remember vocabulary

(physics, obsolete) infrared ray, heat ray

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calorific ray

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Source Word

calorific ray

Noun
 obsolete
(physics, obsolete) infrared ray, heat ray
Japanese Meaning
赤外線 / 熱線
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Google Translation / DeepL Translation

その古い科学者は、黒い石から放たれる熱線が冬でも谷を温めると主張した。

Details

calorific rays
（ plural ）

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