Roentgenium

Pronunciation

Origin

Surname of Wilhelm Roentgen + -ium.

Full definition of roentgenium

Noun

1. 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

Related terms

• Wilhelm Roentgen
• roentgen