Demulcent n. (Med.) 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.
... silage, or selected grass or hay should be offered several times daily. Very little feed should be allowed. Aromatic and demulcent drafts may be given to produce a soothing effect on the mucous lining of the stomachs and to promote digestion. Two ounces of camomile flowers should be boiled for 20 minutes in a quart of water and the infusion ... — Special Report on Diseases of Cattle • U.S. Department of Agriculture
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