Demulcent
Demulcent , adjective
[Latin demulcens, present participle of demulcere.]
Softening; mollifying; soothing; assuasive; as, oil is demulcent.
Demulcent , noun
(Medicine) A substance, usually of a mucilaginous or oily nature, supposed to be capable of soothing an inflamed nervous membrane, or protecting it from irritation. Gum Arabic, glycerin, olive oil, etc., are demulcents.