definitions

ununquadium

[ uhn-uh n-kwah-dee-uh m ]
/ ˌʌn ənˈkwɑ di əm /

noun Chemistry, Physics.

former name of flerovium. Symbol: Uuq

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Nearby words

ununbium, ununhexium, ununnilium, ununoctium, ununpentium, ununquadium, ununseptium, ununtrium, unununium, unusable, unused
Also called element 114.

Definition for ununquadium (2 of 3)

element 114

noun Chemistry, Physics.

flerovium.
Formerly ununquadium.

Definition for ununquadium (3 of 3)

flerovium

[ flai-roh-vee-uh m ]
/ flɛəˈroʊ vi əm /

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

Science definitions for ununquadium (1 of 2)

ununquadium

[ ə-nŭn′kwŏd′ē-əm ]

Uuq

See element 114.

Science definitions for ununquadium (2 of 2)

element 114

Uuq

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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.