noun Chemistry, Physics.
a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Fl; atomic number: 114.
Origin of flerovium
named after Flerov Laboratory of Nuclear Reactions in Russia, cofounded by Georgi N. Flerov, 1913–90, Russian physicist; see -ium
Formerly ununquadium, element 114.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019