n. In botany, the act of budding; also, the manner in which a young leaf is folded up in the bud before its unfolding.n. In zoology, the process of reproduction by buds; the formation of a new individual by the protrusion and complete or partial separation of a part of the parent; budding.n. Also called gemmulation.n. The arrangement or phyllotaxy of leaf-buds.