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[kal-uh-fawr-nee-uh m] /ˌkæl əˈfɔr ni əm/
noun, Chemistry.
a transuranic element. Symbol: Cf; atomic number: 98.
Origin of californium
1945-50; named after the University of California where it was discovered; see -ium Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for californium


a metallic transuranic element artificially produced from curium. Symbol: Cf; atomic no: 98; half-life of most stable isotope, 251Cf: 800 years (approx.)
Word Origin
C20: New Latin; discovered at the University of California
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
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californium in Medicine

californium cal·i·for·ni·um (kāl'ə-fôr'nē-əm)
Symbol Cf
A synthetic radioactive element produced in trace quantities by neutron bombardment of curium. Its most stable isotope, Cf 251, has a half-life of 790 years. Atomic number 98.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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californium in Science
Symbol Cf
A synthetic, radioactive metallic element of the actinide series that is produced from curium or berkelium and is used in chemical analyses. Its most stable isotope, Cf 251, has a half-life of 800 years. Atomic number 98. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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