berkelium

[ ber-kee-lee-uh m ]
/ bərˈki li əm /

noun Chemistry.

a transuranic element. Symbol: Bk; atomic number: 97; atomic weight: 249 (?).

Nearby words

  1. berkeley castle,
  2. berkeley, busby,
  3. berkeley, george,
  4. berkeley, sir william,
  5. berkeleyism,
  6. berkley,
  7. berkner island,
  8. berko,
  9. berks,
  10. berkshire

Origin of berkelium

1945–50; named after Berkeley, California, where it was discovered; see -ium

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for berkelium

berkelium

/ (bɜːˈkiːlɪəm, ˈbɜːklɪəm) /

noun

a metallic transuranic element produced by bombardment of americium. Symbol: Bk; atomic no: 97; half-life of most stable isotope, 247 Bk: 1400 years; valency: 3 or 4; relative density: 14 (est)

Word Origin for berkelium

C20: named after Berkeley 1, 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

Medicine definitions for berkelium

berkelium

[ bər-kēlē-əm, bûrklē-əm ]

n. Symbol Bk

A synthetic radioactive element. Its most stable isotope, Bk 247, has a half-life of 1,380 years. Atomic number 97.

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

Science definitions for berkelium

berkelium

[ bər-kēlē-əm, bûrklē-əm ]

Bk

A synthetic, radioactive metallic element of the actinide series that is produced from americium, curium, or plutonium. Its most stable isotope has a half-life of about 1,400 years. Atomic number 97; melting point 986°C; valence 3, 4. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.