| ball cock |
a device used to regulate the supply of water in a tank or toilet, consisting of a lever connected to a floating ball that shuts a valve when raised and opens it when lowered. |
| float |
a hollow ball used to operate a valve or gauge, as in a toilet tank or gas tank. [1/14 definitions] |
| float valve |
a valve controlled by a floating device. |
| hydrant |
an upright pipe with a valve from which water can be drawn from a water main. |
| insufficiency |
failure of a body part, such as a heart valve, to function normally or adequately. [1/2 definitions] |
| mitral |
pertaining to or near the mitral valve of the heart. [1/2 definitions] |
| mitral valve |
the heart valve located between the left auricle and ventricle that prevents blood from flowing back into the auricle when the heart contracts. |
| needle valve |
a valve having a slender point that fits precisely into a conical seat, for accurately regulating the flow of fluid, as in a carburetor. |
| PCV valve |
a one-way valve that regulates the flow of engine exhaust fumes into an auto engine's cylinders, as part of a pollution control system. |
| petcock |
a small valve or faucet used to drain from or lower the pressure in a pipe, boiler, steam engine, or the like. |
| poppet |
an intake or exhaust valve that can rapidly plug or unplug an opening, often driven by a spring for rapid repetition; poppet valve. [1/2 definitions] |
| relief valve |
a valve that opens automatically to relieve pressure, as in a boiler; safety valve. |
| safety valve |
a valve that opens automatically to reduce the pressure of confined gas or steam when a dangerously high level is reached. [1/2 definitions] |
| seacock |
a valve in the hull of a ship that controls the flow of outside water into the hull. |
| shut-off |
a device, such as a valve, that shuts something off. [1/2 definitions] |
| siphon bottle |
a sealed bottle having a tube through the neck that is connected at the top with a valve that controls the flow of the pressurized carbonated water in the bottle. |
| stopcock |
a valve regulating the flow of fluid through a pipe; faucet. |
| tappet |
in an engine or machine, a connecting rod moved by a cam so as to cause movement in another part such as a valve. |
| throttle |
a valve in a machine, esp. an automobile engine, that controls the flow of fuel, air, or the like. [2/5 definitions] |
| tricuspid |
of or pertaining to a three-part valve in the heart, located between the right auricle and the right ventricle. [1/3 definitions] |
| univalve |
having only one valve. [1/3 definitions] |