valves
Heart has four
Valves are devices that control the flow of liquids or gases through a pipe or channel, opening or closing to regulate passage: a heart valve, the valve on a radiator.
In brass instruments, valves redirect air through different tube lengths to change pitch.
The term extends to any structure that permits flow in one direction while preventing backflow: The veins have valves that keep blood moving toward the heart.
Hinged barrier in fence
- globeSpherical representation of landmasses
- ballSpherical plaything or gala
- butterflyWinged insect from caterpillar
- checkOrder to pay
diaphragm · needle · plug · pinch · solenoid · actuator · regulator · hydraulic
Circulatory system's pump
- mitralOf a heart valve
- tricuspidHaving three projections
- aorticOf the main artery
- pulmonaryOf the lungs
bicuspid · atrioventricular · semilunar · blood · circulation · arteries · veins · cardiac
Valved brass wind instrument
- tromboneSlide-operated brass instrument
- tubaLowest brass instrument
- euphoniumTenor-range brass instrument
- cornetValved wind instrument
rotary · piston · fingerings · embouchure · airflow · pitch · mouthpiece · bell
Two-shelled mollusk
- clamSand-dwelling hinged shellfish
- oysterPearl-bearing edible mollusk
- musselEdible two-shelled mollusk
- scallopFan-shaped edible shellfish
cockle · abalone · geoduck · quahog · littleneck · soft-shell · hard-shell · shell
gate
Hinged barrier in fence
- globeSpherical representation of landmasses
- ballSpherical plaything or gala
- butterflyWinged insect from caterpillar
check · diaphragm · needle · plug · pinch · solenoid · actuator · regulator · hydraulic · pneumatic
heart
Circulatory system's pump
pulmonary · bicuspid · atrioventricular · semilunar · blood · circulation · arteries · veins · cardiac · vascular
trumpet
Valved brass wind instrument
- tromboneSlide-operated brass instrument
- tubaLowest brass instrument
- euphoniumTenor-range brass instrument
cornet · rotary · piston · fingerings · embouchure · airflow · pitch · mouthpiece · bell · slide
bivalve
Two-shelled mollusk
- clamSand-dwelling hinged shellfish
- oysterPearl-bearing edible mollusk
- musselEdible two-shelled mollusk
scallop · cockle · abalone · geoduck · quahog · littleneck · soft-shell · hard-shell · shell · hinge
- auto partsengine, brakes, tires, wheels, steering wheel
- circulation systemsblood vessels, arteries, veins, capillaries, heart
- brass itemstrumpets, trombones, tubas, horns, bells
- fluid systemspumps, pipes, hydraulic systems, fluid flow, pipelines
- gasoline enginesgasoline engine, four-stroke engine, spark plug, piston, cylinder
- Mechanical Engineeringmechanical engineer, design engineer, motors, aerospace engineer, pistons
- valve replacementInstalling new heart flap
- mitral valveLeft heart's one-way door
- shutoff valvesControls that stop flow
- safety valveAutomatic pressure-limiting device
- heart valveOne-way cardiac flap
- control valvesDevices regulating fluid flow