Definition of Roentgenium in English :
Define Roentgenium in English
Roentgenium meaning in English
Meaning of Roentgenium in English
Pronunciation of Roentgenium in English
Roentgenium pronunciation in English
Pronounce Roentgenium in English
Roentgenium
see synonyms of roentgeniumNoun
WordNet Lexical Database for English. Princeton University. 2010.
Roentgenium
see synonyms of roentgeniumnoun
a synthetic radioactive element produced in small quantities by cold fusion in a linear accelerator. Symbol: Rg; atomic no: 111
Collins English Dictionary. Copyright © HarperCollins Publishers
Roentgenium
see synonyms of roentgeniumn. Symbol Rg
An artificially produced radioactive element with atomic number 111 that has only been produced in trace amounts. Its most stable known isotope has a mass number of 280 and a half-life of 3.6 seconds. See Periodic Table.
The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.