one of the paired hinged shells of certain molluscs and of brachiopods | any clever maneuver |
the entire one-piece shell of a snail and certain other molluscs | an instrumentality invented for a particular purpose |
control consisting of a mechanical device for controlling the flow of a fluid | an emblematic design (especially in heraldry) |
device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone | any ornamental pattern or design (as in embroidery) |
a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it | something in an artistic work designed to achieve a particular effect |