n. A light, spongy, very sweet confection made of corn syrup, gelatin, sugar, and starch and dusted with powdered sugar.n. A confection of sweetened paste, formerly made from the root of the marshmallow plant.n. Botany A perennial plant (Althaea officinalis) native to Europe and naturalized in marshes of eastern North America, having showy pink flowers and a mucilaginous root occasionally used as a demulcent and in confectionery.n. Slang A timid, cowardly, or ineffective person.