- Medicine/Medical. a drug or other substance for preventing disease.
- a preventive agent or measure.
Also pre·vent·a·tive [pri-ven-tuh-tiv] /prɪˈvɛn tə tɪv/ (for defs 2, 4).
Origin of preventive
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- tending or intended to prevent or hinder
- tending to prevent disease; prophylactic
- of or relating to the branch of medicine concerned with prolonging life and preventing disease
- (in Britain) of, relating to, or belonging to the customs and excise service or the coastguard
- something that serves to prevent or hinder
- med any drug or agent that tends to prevent or protect against disease
- another name for contraceptive
Also (except for sense 3): preventative (prɪˈvɛntətɪv)
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
Online Etymology Dictionary, © 2010 Douglas Harper
- Preventing or slowing the course of an illness or disease; prophylactic.
- 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.