Definitions For Valve

noun

• One of the paired hinged shells of certain molluscs and of brachiopods
• The entire one-piece shell of a snail and certain other molluscs
• Control consisting of a mechanical device for controlling the flow of a fluid
• Device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
• A structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
• A mechanical device that controls the flow of liquid, gas, etc., by opening and closing
• A device in some musical instruments (such as trumpets) that you press to play different notes
• A structure in the heart, stomach, etc., that temporarily stops the flow of fluid or that allows fluid to move in one direction only