oganesson

noun
oga·​nes·​son | \ˌō-gə-ˈne-ˌsän, ˌä-\

Definition of oganesson 

: a short-lived, artificially produced radioactive element that has 118 protons symbol Og

First Known Use of oganesson

2016, in the meaning defined above

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Dictionary Entries near oganesson

Ogaden

O gage

Ogalala

oganesson

Ogbomosho

Ogcocephalidae

Ogcocephalus

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The first known use of oganesson was in 2016

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