Footstalk
Footstalk , noun
1.
(Botany) The stalk of a leaf or of flower; a petiole, pedicel, or reduncle.
2.
(a) (Zoology) The peduncle or stem by which various marine animals are attached, as certain brachiopods and goose barnacles.
(b)
(Zoology) The stem which supports which supports the eye in decapod Crustacea; eyestalk.
3.
(Machinery) The lower part of a millstone spindle. It rests in a step. — Knight