n. In botany: In phanerogams, a reclined or prostrate branch which strikes root at the tip, developing a new plant. A very slender naked stolon with a bud at the end constitutes a runner, as of the strawberry. See also cut undern. In mosses, a shoot running along or under the ground, and eventually rising into the air and producing fully leafed shoots.n. In zoology, some proliferated part or structure, likened to the stolon of a plant, connecting different parts or persons of a compound or complex organism, and usually giving rise to new zooids by the process of budding. See cuts under Campanularia and Willsia.n. Also stole.