1. (p. pr. & vb. n.) of Bud.

2. (n.) The act or process of producing buds.

3. (n.) A process of asexual reproduction, in which a new organism or cell is formed by a protrusion of a portion of the animal or vegetable organism, the bud thus formed sometimes remaining attached to the parent stalk or cell, at other times becoming free; gemmation. See Hydroidea.

4. (n.) The act or process of ingrafting one kind of plant upon another stock by inserting a bud under the bark.