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major tranquilizer

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an⋅ti⋅psy⋅chot⋅ic

[an-tee-sahy-kot-ik, an-tahy-] Pharmacology
–adjective
1. of or pertaining to any of various substances used in the treatment of psychosis, esp. schizophrenia, and acute or severe states of mania, depression, or paranoia.
–noun
2. Also called major tranquilizer, neuroleptic. any such substance, as the phenothiazines.

Origin:
1950–55; anti- + psychotic
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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antipsychotic drug  
n.  Any of a group of drugs, such as the phenothiazines or butyrophenones, that are used to treat psychosis. Also called major tranquilizer, neuroleptic.
major tranquilizer  
n.  See antipsychotic drug.
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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Medical Dictionary

Main Entry: 2antipsychotic
Function: noun
: any of the powerful tranquilizers (as the phenothiazines or butyrophenones) used especially to treat psychosis andbelieved to act by blocking dopamine nervous receptors called also neuroleptic
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

antipsychotic an·ti·psy·chot·ic (ān'tē-sī-kŏt'ĭk, ān'tī-)
adj.
Counteracting or diminishing the symptoms of a psychotic disorder such as schizophrenia, paranoia, or manic-depressive psychosis.


an'ti·psy·chot'ic n.

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