n. In chem., a liquid used to carry sensitive salts for coating glass or paper for use in photography.n. Any carriage moving on land, either on wheels or on runners; a conveyance.n. That which is used as an instrument of conveyance, transmission, or communication.n. Specifically— In pharmacy, a substance, usually fluid, possessing little or no medicinal action, used as a medium for the administration of active remedies; an excipient.n. In painting, any liquid, whether water, as in water-color painting, or oil, as in oil-color painting, which is used to render colors, varnishes, etc., manageable and fit for use.n. One of two enduements, the one more spiritual than the other, with which the soul is clothed, according to the Platonists. One corresponds to vital power, the other to spirit.To convey in or apply or impart by means of a vehicle.