hassium
a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Hs; atomic number: 108.
Origin of hassium
1- Formerly unniloctium .
Words Nearby hassium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
British Dictionary definitions for hassium
/ (ˈhæsɪəm) /
a synthetic element produced in small quantities by high-energy ion bombardment. Symbol: Hs; atomic no: 108
Origin of hassium
1Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for hassium
[ hä′sē-əm ]
A synthetic, radioactive element that is produced by bombarding lead with iron ions. Its known isotopes have mass numbers ranging from 263 to 277. Hs 277 has the longest confirmed half-life (16.5 minutes). Atomic number 108. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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