ROENTGENIUM
roentgenium, Rg, element, atomic number
(noun) a radioactive transuranic element
Source: WordNet® 3.1
Etymology
Noun
roentgenium (uncountable)
A transuranic chemical element (symbol Rg) with atomic number 111.
Synonyms
• eka-gold (used before the element was discovered)
• unununium (used before the element was officially named)
Source: Wiktionary
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SUNGLASSES
(noun) (plural) spectacles that are darkened or polarized to protect the eyes from the glare of the sun; “he was wearing a pair of mirrored shades”
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