element 113
Americannoun
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An artificially produced radioactive element whose most stable isotope has a mass number of 284 and a half-life of slightly less than half a second.
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Also called ununtrium
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See Periodic Table
Example Sentences
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Indeed, RIKEN's 9-year pursuit of element 113 resulted in a nice budget boost.
From Science Magazine • Jan. 30, 2019
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.
