Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- The symbol for element 114.
- An artificially produced radioactive element whose most stable isotope has a mass number of 289 and a half-life of approximately 2.7 seconds. Radioactive decay of all isotopes is chiefly by alpha-particle transmission. Also called ununquadium See Periodic Table.
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