unnilhexium

[ yoo-nil-hek-see-uhm ]

noun

, Chemistry, Physics.

1. the systematic element name for element 106 before being named seaborgium. : Unh

Word History and Origins

Origin of unnilhexium¹

First recorded in 1975–80; from Latin ūn(us) “one”+ nil ( def ) “zero” + Greek héx “six” + -ium ( def )