[ law-ren-see-uhm ]
/ lɔˈrɛn si əm /
a synthetic, radioactive, metallic element. Symbol: Lr; atomic number: 103.
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Origin of lawrencium
1960–65; Lawrence Radiation Laboratory, Berkeley, California + -ium
Words nearby lawrencium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for lawrencium
/ (lɒˈrɛnsɪəm, lɔː-) /
a transuranic element artificially produced from californium. Symbol: Lr; atomic no: 103; half-life of most stable isotope, 256 Lr: 35 seconds; valency: 3
Word Origin for lawrencium
C20: named after Ernest Orlando Lawrence (1901–58), US physicist
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
Medical definitions for lawrencium
[ lô-rĕn′sē-əm, lō- ]
n. Symbol Lr
A radioactive synthetic element produced from californium and having isotopes with mass numbers 253 through 260 and half-lives of 650 milliseconds to 3 minutes; atomic number 103.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for lawrencium
[ lô-rĕn′sē-əm ]
A synthetic, radioactive metallic element of the actinide series that is produced by bombarding californium with boron ions. Its most stable isotope is Lr 262 with a half-life of 3.6 hours. Atomic number 103. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.