unnilquadium

American  

[yoo-nil-kwod-ee-uhm] / ˌyu nɪlˈkwɒd i əm /

noun

Chemistry, Physics.

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

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Etymology

Origin of unnilquadium

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