uranium

• n. [化学] ウラン

1789年、発見者であるドイツの化学者?鉱物学者マルティン?ハインリヒ?クラプロスが、当時発見されたばかりの天王星にちなんでこの金属元素を命名したことから。セリウムは穀物の女神セレスに由来する。

uranium

uranium: [18] Ouranós was an ancient sky god in Greek mythology, consort of Gaea and father of Cronos and the Titans (his name was a personification of Greek ouranós ‘heaven’). The Romans called him ūranus, and the name soon came to be applied to the seventh planet from the sun after it was discovered in 1781. (Its discoverer, the German-born British astronomer Sir William Herschel, originally named it Georgium sidus ‘Georgian planet’, as an obsequious compliment to King George III, and others suggested that it should be called Herschel after the man who found it, but in the end the customary practice of naming after a classical deity prevailed.) The term uranium was derived from the planet’s name in 1789 by the German chemist Martin Klaproth, and is first recorded in English in 1797.

uranium (n.)

rare metallic element, 1797, named 1789 in Modern Latin by its discoverer, German chemist and mineralogist Martin Heinrich Klaproth (1743-1817), for the recently found planet Uranus (q.v.) + element ending -ium.

1. It was actually used for enriching uranium to weapons-grade levels.

実際には、ウラン濃縮を武器を製造するために使用されています。

2.Enriched uranium is a key component of a nuclear weapon.

濃縮ウランは核兵器の重要な構成部分である。

3. Uranium is soluble in sea water.

ウランは海水に溶解することができる。

4.They went over nationwide in search of uranium mines.

彼らはウラン鉱山を探すために全国を回った。dd>

ウラン原子1000個当たり、7個だけがウラン235.

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