livermorium

livermorium [liv-er-mawr-ee-uh m, -mohr-] Word Origin noun Chemistry, Physics.

1. a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Lv; atomic number: 116.

Origin of livermorium named after Lawrence Livermore National Laboratory, which participated in its creation; see -ium Formerly ununhexium, element 116.