Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A highly unstable radioactive element, the heaviest of the halogen series, that resembles iodine in solution. Its longest lived isotope has a mass number of 210 and has a half-life of 8.3 hours. Atomic number 85; melting point 302°C; boiling point 337°C; valence probably 1, 3, 5, 7. See Table at element.
Wiktionary
- n. A highly radioactive chemical element (symbol At) with atomic number 85 and one of the halogens.
WordNet 3.0
- n. a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
Etymologies
- Greek astatos, unstable; see astasia + -ine2.
Examples
“In collaboration with Traude Cless-Bernert, she discovered the natural occurrence of isotopes of astatine by observation of their radioactive alpha particle decays.”
“The other halogens are: fluorine, an extremely reactive gas; chlorine, a reactive, heavy gas; iodine, a relatively inactive solid; and astatine.”
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“Professor Perrier the element technetium, together with Corson and Mackenzie the element astatine, and together with Kennedy,”
“He controls every aspect of my life at once, from what to wear to whether I may the bathroom astatine work to when I may eat at.”
“If Kim Kardashian is beautiful, then I'm a black guy with a 23 inch dong that shoots semen coated with astatine (rarest element on earth).”
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“O2 (g) • all halogens: fluorine - F2 (g) chlorine - Cl2 (g) bromine - Br2 (l) iodine - I2 (s) astatine - At2 (s) polyatomic elements include: • • phosphorous - P4 (s) • sulfur - S8 (s) all other nonmetals are monatomic and solid, • except bromine Chemistry 20 - Unit 3 Page 2”
Lists
These user-created lists contain the word ‘astatine’.
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Logolepsy
"Luciferous Logolepsy is a collection of over 9,000 obscure English words. Though the definition of an 'English' word might seem to be straightforward, it is not. There exist so many adopted, deriv...
Anschauung, Areopagus, Argus, Briarean, Dei gratia, Dei judicium, Deo volente, Duecento, Foehn, Geflugelte Worte, Gegenschein, Hakenkreuz and 9230 more...
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Chemical Elements
A list of chemical elements
hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon, sodium, magnesium and 106 more...
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moving constants
insteadfast, assid tests, isentropic, swerveless, scedastic, stableful, fixure, compoise, still, withoutcessant, Cassini ovals, conchoid and 53 more...
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Elementary
Words that can be formed from the official abbreviations of the names of chemical elements, starting with the elements themselves.
arsenic, astatine, bismuth, carbon, copper, iron, neon, silicon, tin, xenon
oroboros At. Dec 15, 2007
oroboros Can be spelled with the Periodic Table of Elements symbols: AsTaTiNe Dec 12, 2006