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ATS

1.
Auxiliary Territorial Service (organized in 1941 for women serving in the British army; became part of army in 1949 as WRAC).

A.T.S.

1.
American Temperance Society.
2.
American Tract Society.
3.
American Transport Service.

at2

[aht, at] /ɑt, æt/
noun
1.
a money of account of Laos, the 100th part of a kip.
Origin
1950-1955
1950-55; < Lao; compare Thai ʔàt formerly, a copper coin worth one eighth of a füang, ultimately < Pali aṭṭha eight
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for ATS

at1

/æt/
preposition
1.
used to indicate location or position: are they at the table?, staying at a small hotel
2.
towards; in the direction of: looking at television, throwing stones at windows
3.
used to indicate position in time: come at three o'clock
4.
engaged in; in a state of (being): children at play, stand at ease, he is at his most charming today
5.
(in expressions concerned with habitual activity) during the passing of (esp in the phrase at night): he used to work at night
6.
for; in exchange for: it's selling at four pounds
7.
used to indicate the object of an emotion: angry at the driver, shocked at his behaviour
8.
(slang) where it's at, the real place of action
Word Origin
Old English æt; related to Old Norse at to, Latin ad to

at2

/ɑːt; æt/
noun (pl) at
1.
a Laotian monetary unit worth one hundredth of a kip
Word Origin
from Thai

at3

abbreviation
1.
Austria

At

Chemical symbol
1.
astatine
symbol
2.
Also A. ampere-turn

AT

abbreviation
1.
attainment target
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for ATS

at

prep.

Old English æt, from Proto-Germanic *at (cf. Old Norse, Gothic at, Old Frisian et, Old High German az), from PIE *ad- "to, near, at" (cf. Latin ad "to, toward" Sanskrit adhi "near;" see ad-).

Lost in German and Dutch, which use their equivalent of to; in Scandinavian, however, to has been lost and at fills its place. In choosing between at church, in church, etc. at is properly distinguished from in or on by involving some practical connection; a worshipper is at church; a tourist is in the church.

The colloquial use of at after where ("where it's at") is attested from 1859. At last is recorded from late 13c.; adverbial phrase at least was in use by 1775. At in Middle English was used freely with prepositions (e.g. at after, which is in Shakespeare), but this has faded with the exception of at about, which was used in modern times by Trollope, Virginia Woolfe, D.H. Lawrence, and Evelyn Waugh, but nonetheless is regarded as a sign of incompetent writing by my copy editor bosses.

Online Etymology Dictionary, © 2010 Douglas Harper
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ATS in Medicine

At
The symbol for the element astatine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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ATS in Science
At  
The symbol for astatine.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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ATS in Technology
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Related Abbreviations for ATS

ats

Agreed to Senate

ATS

  1. against the spread
  2. alternate to suspension
  3. American Temperance Society
  4. American Thoracic Society
  5. American Tract Society
  6. American Transport Service
  7. Austria-schilling

aT

attotesla

At

  1. ampere-turn
  2. astatine

AT

  1. achievement test
  2. advanced technology
  3. air temperature
  4. antitank
  5. Atlantic Time
  6. automatic transmission
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia Article for ATS

At

radioactive chemical element and the heaviest member of the halogen elements, or Group 17 (Group VIIa) of the periodic table. Astatine, which has no stable isotopes, was first synthetically produced (1940) at the University of California by American physicists Dale R. Corson, Kenneth R. MacKenzie, and Emilio Segre, who bombarded bismuth with accelerated alpha particles (helium nuclei) to yield astatine and neutrons. Naturally occurring astatine isotopes have subsequently been found in minute amounts in the three natural radioactive decay series, in which they occur by minor branching (astatine-218 in the uranium series, astatine-216 in the thorium series, and astatine-215 and astatine-219 in the actinium series). Thirty-three isotopes are known; astatine-210, with a half-life of 8.3 hours, is the longest lived.

Learn more about At with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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