Definition of einsteinium in English:

einsteinium

Line breaks: ein¦stein|ium
Pronunciation: /ʌɪnˈstʌɪnɪəm
 
/

noun

[mass noun]
  • The chemical element of atomic number 99, a radioactive metal of the actinide series. Einsteinium does not occur naturally and was discovered in 1953 in debris from the first hydrogen bomb explosion. (Symbol: Es)
    More example sentences
    • They were named after two of the century's most creative physicists: einsteinium and fermium.
    • All isotopes of einsteinium are radioactive, the most stable being einsteinium - 252 with a half life of 20.47 days.
    • Atomic number 101 is a radioactive transuranic element synthesized by bombarding einsteinium with alpha particles.

Origin

1950s: from the name of Albert Einstein, Albert + -ium.

More definitions of einsteinium

Definition of einsteinium in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
noun
elaborate ornamentation of a vocal melody