What does "footstalk" mean?

Footstalk: (Zoöl.) (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.

Additional senses

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

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