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Lr

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Symbol, Chemistry.
  1. lawrencium.

LR

Real Estate.
  1. living room.

L.R.

  1. Lloyd's Register.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for lr

lr

the internet domain name for
  1. Liberia

Lr

the chemical symbol for
  1. lawrencium
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

lr in Medicine

Lr

  1. The symbol for the elementlawrencium

lr in Science

Lr

  1. The symbol for lawrencium.

lawrencium

[lô-rĕnsē-əm]
Lr
  1. 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.