seaborgium

noun

sea·​borg·​i·​um sē-ˈbȯr-gē-əm How to pronounce seaborgium (audio)
: a short-lived radioactive element that is produced artificially see Chemical Elements Table

Word History

Etymology

New Latin, from Glenn T. Seaborg

First Known Use

1994, in the meaning defined above

Time Traveler
The first known use of seaborgium was in 1994

Browse Nearby Words

Seaborg
seaborgium
sea-born
See all Nearby Words

Cite this Entry

“Seaborgium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seaborgium. Accessed 4 Nov. 2025.

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Kids Definition

seaborgium

noun
sea·​borg·​i·​um sē-ˈbȯr-gē-əm How to pronounce seaborgium (audio)
: a short-lived radioactive element that is produced artificially
Etymology

from G.T. Seaborg, 1912–1999, American chemist

Medical Definition

seaborgium

noun
sea·​borg·​i·​um sē-ˈbȯr-gē-əm How to pronounce seaborgium (audio)
: a short-lived radioactive element that is artificially produced
—symbol Sg see Chemical Elements Table

More from Merriam-Webster on seaborgium

Britannica.com: Encyclopedia article about seaborgium

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