I. di-ˈməl-sənt adjective
Etymology: Latin demulcent-, demulcens, present participle of demulcēre to soothe, from de- + mulcēre to soothe
Date: 1732
: soothing
II. noun
Date: 1732
: a usually mucilaginous or oily substance (as tragacanth) that can soothe or protect an abraded mucous membrane