einsteinium

Meanings

1. 1
   noun

   a synthetic radioactive chemical element with atomic number 99 and symbol Es

   Einsteinium was first identified in debris from the first thermonuclear explosion.

Formed from Einstein + -ium and named for physicist Albert Einstein. The element was identified in 1952 in fallout from the first thermonuclear test, although the discovery was initially classified.

Topics

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