oganesson

noun
oga·​nes·​son | \ ˌō-gə-ˈne-ˌsän How to pronounce oganesson (audio) , ˌä- \

Definition of oganesson

: a short-lived, artificially produced radioactive element that has 118 protons symbol Og — see Chemical Elements Table

First Known Use of oganesson

2016, in the meaning defined above

History and Etymology for oganesson

Yuri Tsolakovich Oganessian born 1933 Russian-Armenian physicist (Russian Jurij Colakovič Oganesjan, Armenian Yuri Cʼolaki Hovhannisyan) + -on, suffix of elements that are noble gases, as argon and xenon

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The first known use of oganesson was in 2016

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Cite this Entry

“Oganesson.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oganesson. Accessed 12 Aug. 2020.

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