Definition of Astatine

1. Noun. A highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium.

Exact synonyms: At, Atomic Number 85
Generic synonyms: Chemical Element, Element, Halogen

Definition of Astatine

1. Noun. A highly radioactive chemical element (''symbol'' At), one of the halogens, with atomic number 85. ¹

¹ Source: wiktionary.com

Definition of Astatine

1. a radioactive element [n -S]

Medical Definition of Astatine

1. Astatine. A radioactive halogen with the atomic symbol at, atomic number 85, and atomic weight 210. Its isotopes range in mass number from 200 to 219 and all have an extremely short half-life. Astatine may be of use in the treatment of hyperthyroidism. Chemical name: Astatine (12 Dec 1998)

Lexicographical Neighbors of Astatine

astars
astart
astarted
astarting
astarts
astasia
astasia-abasia
astasias
astatane
astatic
astatic coils
astatic galvanometer
astatically
astaticism
astatine (current term)
astatines
astatki
astatkis
astaxanthin
astay
asteatodes
asteatosis
asteatosis cutis
asteism
asteisms
asteismus
asteistic
astel
astelic

Literary usage of Astatine

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Practical Treatise on the Law of Contracts: Not Under Seal; and Upon the by Joseph Chitty (1834)
"64, astatine. And ante, 72, 73. 131357. (*) Munn v. Raker, 2 Stark. R. 255. (»/) Bacon's F.lem. c. 3; 2 Bla. C. 2 C. & P. 550, SC, Chilly Jun. ..."

2. Lawyers' Reports Annotated by Lawyers Co-operative Publishing Company (1905)
"A return of property for taxation in another state docs not exempt it from taxation in the absence of astatine to that effect, if the property Is otherwise ..."

3. The Geography of the Heavens: And Class-book of Astronomy; Accompanied by a by Elijah Hinsdale Burritt, Thomas Dick (1842)
"... and are the marks of great physical revolutions, which are perpetually astatine and changing tile surface of the planet. The first of these opinions ..."

4. The Methodist Review (1879)
"... that there is a special statute for the trial of heresy would set it aside as to that; for it is an axiom that astatine always sets aside common law. ..."

5. The Scientific Memoirs of Thomas Henry Huxley by Thomas Henry Huxley, Michael Foster (1902)
"... region east of the Sierra Nevada—in other words, of the river-basins which flow into the Gulf of Mexico and the West Atlantic. The astatine region ..."

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