Symbol, Chemistry, Physics.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for rf
Historical Examples of rf
The widely-open medullary groove (rf) is shewn in the centre.The Works of Francis Maitland Balfour, Volume III (of 4)
Francis Maitland Balfour
Tombu took the opportunity to inquire, "Have you got that RF field-phase generator under control yet?"Where I Wasn't Going
the chemical symbol for
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
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
The symbol for rutherfordium.
A synthetic, radioactive element that is produced by bombarding plutonium with carbon or neon ions. Its most stable isotope is Rf 261 with a half-life of 62 seconds. Atomic number 104. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.