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n. Symbol Lv
An artificially produced radioactive element with atomic number 116 that has only been produced in trace amounts and has five observed isotopes with mass numbers ranging from 289 to 293. Its most stable isotope has a half-life of about 53 milliseconds. See Periodic Table.
[After the Lawrence Livermore National Laboratory located in Livermore, California, which collaborated in its discovery.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Elements & Compounds) a transuranic element produced by bombarding curium with calcium-20 ions. Symbol: Lv; atomic no: 116; atomic wt: 293
[C21: named after the Lawrence Livermore National Laboratory, California, scientists from which were involved in its discovery ]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014