unniloctium
[ yoo-ni-lok-tee-uh m ]
/ ˌyu nɪˈlɒk ti əm /
noun Chemistry, Physics.
former name of hassium. Symbol: Uno
Words nearby unniloctium
unnatural, unnecessary, unnerve, unnilennium, unnilhexium, unniloctium, unnilpentium, unnilquadium, unnilseptium, unnoticeable, unnoticed
Also called element 108.
Definition for unniloctium (2 of 3)
hassium
[ has-ee-uh m ]
/ ˈhæs i əm /
noun Chemistry, Physics.
a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Hs; atomic number: 108.
Origin of hassium
after Medieval Latin Hassia (the German state of Hesse, location of the institute where it was first created); see -ium
Formerly unniloctium, element 108.
Definition for unniloctium (3 of 3)
Formerly unniloctium.
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for unniloctium
hassium
/ (ˈhæsɪəm) /
noun
a synthetic element produced in small quantities by high-energy ion bombardment. Symbol: Hs; atomic no: 108
Word Origin for hassium
C20: from Latin, from Hesse, German state where it was discovered
Collins 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 unniloctium
hassium
[ hä′sē-əm ]
Hs
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
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