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calmative

[kah-muh-tiv, kal-muh-]Medicine/Medical
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adjective
  1. having a sedative effect.
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noun
  1. a calmative agent.
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Origin of calmative

First recorded in 1865–70; calm + -ative
Related formsun·cal·ma·tive, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for calmative

calmative

adjective
  1. (of a remedy or agent) sedative
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noun
  1. a sedative remedy or drug
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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

Word Origin and History for calmative

adj.

by 1831, from French calmatif; see calm (adj.) + -ative. A hybrid word; purists prefer sedative. "The Latinic suffix is here defensible on the ground of It. and Sp. calmar, F. calmer ...." [OED].

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Online Etymology Dictionary, © 2010 Douglas Harper
calmative in Medicine

calmative

(kä′mə-tĭv, kăl′mə-)
adj.
  1. Having relaxing or pacifying properties.
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n.
  1. A sedative.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.