livermorium

noun

liv·​er·​mo·​ri·​um ˌli-vər-ˈmȯr-ē-əm 

: a short-lived artificially produced radioactive element that has 116 protons

—symbol Lv see Chemical Elements Table

Word History

Etymology

Lawrence Livermore National Laboratory in Livermore, California (which cooperated in its production) + -ium

First Known Use

2012, in the meaning defined above

Kids Definition

livermorium

noun

liv·​er·​mo·​ri·​um ˌli-vər-ˈmȯr-ē-əm 

: a short-lived artificially produced radioactive element see element