depletant,a.andn.Med.|dɪˈpliːtənt| [f. deplete v.: see -ant1.] A.adj. Having the property of depleting (see deplete v. 2). B.n. A drug which has this property. 1880Libr.Univ.Knowl. VIII. 13 Tonics are often of more service [in inflammation] than depletants.