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mendelevium

American  
[men-dl-ee-vee-uhm] / ˌmɛn dlˈi vi əm /

noun

Chemistry, Physics.

  1. a transuranic element. Md, Mv; 101.

mendelevium British  
/ ˌmɛndɪˈliːvɪəm /

noun

  1. a transuranic element artificially produced by bombardment of einsteinium. Symbol: Md; atomic no: 101; half-life of most stable isotope, 258 Md: 60 days (approx.); valency: 2 or 3

"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
mendelevium Scientific  
/ mĕn′də-lē′vē-əm /

  1. A synthetic, radioactive metallic element of the actinide series that is produced by bombarding einsteinium with helium ions. Its most stable isotope is Md 258 with a half-life of approximately 51.5 days. Atomic number 101.

  2. See Periodic Table

Etymology

Origin of mendelevium

1950–55; named after D. I. Mendeleev; see -ium

Vocabulary lists containing mendelevium

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.