a restorative agent, means, or the like.
a means of restoring a person to consciousness: Smelling salts serve as a restorative.
Origin of restorative
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
tending to revive or renew health, spirits, etc
anything that restores or revives, esp a drug or agent that promotes health or strength
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
late 14c., from Old French restoratif from restorer (see restore).
early 15c., from restorative (adj.), or from Medieval Latin restaurativum "a restorative."
Online Etymology Dictionary, © 2010 Douglas Harper
Of or relating to restoration.
Tending or having the power to restore.
A medicine or other agent that helps to restore health, strength, or consciousness.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.