seaborgium
Americannoun
noun
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A synthetic, radioactive element that is produced by bombarding californium with oxygen ions or bombarding lead with chromium ions. Its most long-lived isotopes have mass numbers 259, 261, 263, 265, and 266 with half-lives of 0.9, 0.23, 0.8, 16, and 20 seconds, respectively. Atomic number 106.
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See Periodic Table
Etymology
Origin of seaborgium
First recorded in 1965–70; officially assigned to element 106 in 1997; named after U.S. chemist Glenn T. Seaborg; see -ium ( def. )
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
It was well earned, says Prof Nitsche, for Seaborg's impact on the periodic table went much further than just seaborgium or Pu.
From BBC • Sep. 19, 2014
Glenn Seaborg was immortalised in his lifetime by element 106, seaborgium, which he considered a far greater honour than the Nobel Prize he won along with McMillan in 1951.
From BBC • Sep. 19, 2014
He led the research team that discovered plutonium and was the first living person to have an element, seaborgium, named for him.
From Time Magazine Archive
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
