Source : Webster's Revised Unabridged Dictionary (1913)

Footstalk \Foot"stalk`\, n.
   1. (Bot.) The stalk of a leaf or of flower; a petiole,
      pedicel, or reduncle.

   2. (Zo["o]l.)
      (a) The peduncle or stem by which various marine animals
          are attached, as certain brachiopods and goose
          barnacles.
      (b) The stem which supports which supports the eye in
          decapod Crustacea; eyestalk.

   3. (Mach.) The lower part of a millstone spindle. It rests in
      a step. --Knight.