[ loo-tee-shee-uh m ]
/ luˈti ʃi əm /
a trivalent rare-earth element. Symbol: Lu; atomic weight: 174.97; atomic number: 71.
Words nearby lutetium
luteotropic hormone, luteotropin, luteous, lutestring, lutetia, lutetium, luth., luther, luther, martin, lutheran, lutheran church
Origin of lutetium
1905–10; < LatinLūtēt(ia) Paris + -ium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for lutetium
a silvery-white metallic element of the lanthanide series, occurring in monazite and used as a catalyst in cracking, alkylation, and polymerization. Symbol: Lu; atomic no: 71; atomic wt: 174.967; valency: 3; relative density: 9.841; melting pt: 1663°C; boiling pt: 3402°C
Word Origin for lutetium
C19: New Latin, from Latin Lūtētia ancient name of Paris, home of G. Urbain (1872–1938), French chemist, who discovered it
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
Medical definitions for lutetium
A rare-earth element, used in nuclear research. Atomic number 71.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for lutetium
A silvery-white metallic element of the lanthanide series that is used in nuclear technology. Its radioactive isotope is used in determining the age of meteorites. Atomic number 71; atomic weight 174.97; melting point 1,663°C; boiling point 3,395°C; specific gravity 9.840 (at 25°C); valence 3. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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