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Sedation

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se⋅da⋅tion

[si-dey-shuhn]
–noun Medicine/Medical.
1. the calming of mental excitement or abatement of physiological function, esp. by the administration of a drug.
2. the state so induced.

Origin:
1535–45; < L sēdātiōn- (s. of sēdātiō), equiv. to sēdāt(us) (see sedate ) + -iōn- -ion
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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se·da·tion   (sĭ-dā'shən)   
n.  
  1. Reduction of anxiety, stress, irritability, or excitement by administration of a sedative agent or drug.

  2. The state or condition induced by a sedative.


[Middle English sedacioun, from Old French sedation, from Latin sēdātiō, sēdātiōn-, from sēdātus, past participle of sēdāre, to calm; see sedate1.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

sedation 
1543, from L. sedationem (nom. sedatio), from sedare (see sedate).
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: se·da·tion
Pronunciation: si-'dA-sh&n
Function: noun
1 : the inducing of a relaxed easy state especially by the use ofsedatives
2 : a state resulting from sedation
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

sedation se·da·tion (sĭ-dā'shən)
n.

  1. Reduction of anxiety, stress, irritability, or excitement by administration of a sedative agent or drug.

  2. The state or condition induced by a sedative.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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