uranium

Definition

The element with atomic number 92 and symbol U. A radioactive silvery-grey metal in the actinide series.

Etymology

After Uranus (the planet), + -ium.

Example Sentences

• "The head of the UN’s nuclear watchdog says US strikes on Iran fell short of causing total damage to its nuclear program and that Tehran could restart enriching uranium “in a matter of months,” contradicting President Donald Trump’s claims the US set Tehran’s ambitions back by decades."

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