verb transitive, verb intransitiveWord forms: ˈtranquilˌized or ˈtranquilˌlized, ˈtranquilˌizing or ˈtranquilˌlizing to make or become tranquil; specif., to calm by the use of a tranquilizer
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.
Derived forms tranquilization (ˌtranquiliˈzation)
noun or ˌtranquilliˈzation