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element 113

American  
[el-uh-muhnt wuhn thur-teen] / ˈɛl ə mənt ˈwʌn ˌθɜrˈtin /

noun

  1. Chemistry. nihonium.

element 113 Scientific  

  1. 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.

  2. Also called ununtrium

  3. 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.