ataractic
American Heritage Dictionary:
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at·a·rac·tic
(ăt'ə-răk'tĭk) 
also at·a·rax·ic (-răk'sĭk)
adj.
Of or relating to a drug or other agent that has a tranquilizing effect.
also at·a·rax·ic (-răk'sĭk)adj.
Of or relating to a drug or other agent that has a tranquilizing effect.
[From Greek ataraktos, undisturbed : a-, not; see a-1 + taraktos, disturbed (from tarassein, tarak-, to disturb).]
Saunders Veterinary Dictionary:
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ataractic
1. pertaining to or characterized by ataraxia.
2. an agent that induces ataraxia; a tranquilizer.
Mosby's Dental Dictionary:
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ataractic
(at′ərak′tik)
n
n
(ataraxic, tranquilizer), one of a poorly defined group of drugs designed to produce ataraxia. The former concept, that the use of ataractics involved no mental or motor impairment, is subject to question.
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Copyrights:
American Heritage Dictionary
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
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Saunders Veterinary Dictionary
Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved.
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Mosby's Dental Dictionary
Mosby's Dental Dictionary. Copyright © 2004 by Elsevier, Inc. All rights reserved.
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