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preventive

[pri-ven-tiv] /prɪˈvɛn tɪv/
adjective
1.
Medicine/Medical. of or noting a drug, vaccine, etc., for preventing disease; prophylactic.
2.
serving to prevent or hinder:
preventive measures.
noun
3.
Medicine/Medical. a drug or other substance for preventing disease.
4.
a preventive agent or measure.
Also, preventative
[pri-ven-tuh-tiv] /prɪˈvɛn tə tɪv/ (Show IPA),
(for defs 2, 4).
Origin
1630-1640
1630-40; prevent + -ive
Related forms
preventively, adverb
preventiveness, noun
nonpreventive, adjective
nonpreventively, adverb
nonpreventiveness, noun
unpreventative, adjective
unpreventive, adjective
unpreventively, adverb
unpreventiveness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for un preventative

preventive

/prɪˈvɛntɪv/
adjective
1.
tending or intended to prevent or hinder
2.
(med)
  1. tending to prevent disease; prophylactic
  2. of or relating to the branch of medicine concerned with prolonging life and preventing disease
3.
(in Britain) of, relating to, or belonging to the customs and excise service or the coastguard
noun
4.
something that serves to prevent or hinder
5.
(med) any drug or agent that tends to prevent or protect against disease
6.
another name for contraceptive
Also (except for sense 3) preventative (prɪˈvɛntətɪv)
Derived Forms
preventively, adverb
preventiveness, noun
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 un preventative

preventive

adj.

1630s, from Latin praevent-, past participle stem of praevenire (see prevent), + -ive. As a noun, from 1630s; in medical use from 1670s.

Online Etymology Dictionary, © 2010 Douglas Harper
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un preventative in Medicine

preventive pre·ven·tive (prĭ-věn'tĭv) or pre·ven·ta·tive (-tə-tĭv)
adj.
Preventing or slowing the course of an illness or a disease; prophylactic. n.
A preventive agent or treatment.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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2
4
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