Einsteinium

//aɪnˈstaɪni.əm// noun

Definitions

Noun
  1. 1
    A transuranic chemical element (symbol Es) with atomic number 99: a soft, silvery, paramagnetic metal. uncountable

    "Einsteinium, the 99th element of the periodic table, was discovered in the fallout of the first hydrogen bomb, detonated by the United States in the Marshall Islands on November 1, 1952."

  2. 2
    a radioactive transuranic element produced by bombarding plutonium with neutrons wordnet

Etymology

From Einstein + -ium. Named after Albert Einstein.

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