[uh-nuhn-tree-uh m]

noun Chemistry, Physics.

a superheavy, synthetic, radioactive element with a short half-life. Symbol: Uut; atomic number: 113.

Also called element 113.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Science definitions for ununtrium




See element 113.
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