Noun
The stalk of a leaf or of flower; a petiole, pedicel, or reduncle.
The peduncle or stem by which various marine animals are attached, as certain brachiopods and goose barnacles.
The stem which supports which supports the eye in decapod Crustacea; eyestalk.
The lower part of a millstone spindle. It rests in a step.
Source: Webster's dictionary