demulcent

DEMULCENT, a. [L. To stroke, to soften; allied perhaps to mollis, mellow.] Softening; mollifying; lenient; as, oil is demulcent.

DEMULCENT, n. Any medicine which lessens acrimony, or the effects of stimulus on the solids; that which softens or mollifies; as gums, roots of marsh-mallows, and other mucilaginous substances.