antiperiodic[an′tī pir′ē äd′ik; -tē-, -ti-]
antiperiodic definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
preventing the periodic return of attacks of disease, as of certain fevers, esp. malaria
an antiperiodic substance or drug
antiperiodic definition by American Heritage Dictionary
Preventing regular recurrence of the symptoms of a disease, as in malaria.
- anˌti·peˌri·odˈic noun