Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun An artificially produced radioactive element with atomic number 108 that has known isotopes with mass numbers ranging from 263 to 277, all of which decay by alpha particle emission or spontaneous fission. The isotope with the longest confirmed half-life (16.5 minutes) is Hs-277. cross-reference: Periodic Table.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun An artificially-produced transuranic chemical element (symbol Hs) with atomic number 108.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a radioactive transuranic element

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[From Medieval Latin Hassia, Hesse (German state containing Darmstadt, where the element was first synthesized).]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From the Latin form of the German state of Hessen, the location of the institute where the element was first synthesized.

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Examples

  • Researchers at Lawrence Berkeley National Laboratory in California saw the isotopes of rutherfordium, seaborgium, hassium, darmstadtium, and copernicium by watching the decay of the yet-to-be-named element 114, a synthetic element first produced about a decade ago.

    Wired Top Stories Marissa Cevallos 2010

Comments

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  • Hs.

    December 16, 2007