unnilquadium

[yoo-nil-kwod-ee-uhm]

noun

Chemistry, Physics.

1. the systematic element name for element 104 before being named rutherfordium. Unq

Word History and Origins

Origin of unnilquadium¹

First recorded in 1975–80; from Latin ūn(us) “one” + nil ( def. ) “zero” + quad(ri) “four” + -ium ( def. )