[noh-bel-ee-uh m, -bee-lee-]

noun Chemistry, Physics.

a transuranic element in the actinium series. Symbol: No; atomic number: 102.

Nearby words

  1. nobel laureate,
  2. nobel prize,
  3. nobel prizes,
  4. nobel, alfred bernhard,
  5. nobelist,
  6. nobile,
  7. nobiliary,
  8. nobiliary particle,
  9. nobility,
  10. noble

Origin of nobelium

1955–60; < New Latin; after Nobel Institute, where first discovered; see -ium Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for nobelium



a transuranic element produced artificially from curium. Symbol: No; atomic no: 102; half-life of most stable isotope, 255 No: 180 seconds (approx.); valency: 2 or 3

Word Origin for nobelium

C20: New Latin, named after Nobel Institute, Stockholm, where it was discovered

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

Word Origin and History for nobelium



1957, from Nobel + -ium.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for nobelium



n. Symbol No

A radioactive synthetic element in the actinide series; its longest-lived isotope is No 259 with a half-life of 58 minutes. Atomic number 102.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for nobelium




A synthetic, radioactive metallic element in the actinide series that is produced by bombarding curium with carbon ions. Its longest-lived isotope is No 255 with a half-life of 3.1 minutes. Atomic number 102. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.