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valve

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{adj: malfunctioning, nonfunctional} not performing or able to perform its regular function
"a malfunctioning valve"
<-> functioning

{adj: mitral} of or relating to or located in or near the mitral valve
"mitral insufficiency"

{adj: tricuspid, tricuspidate} having three cusps or points (especially a molar tooth)
"tricuspid molar"
"tricuspid valve"

{adj: two-way} operating or permitting operation in either of two opposite directions
"a two-way valve"
"two-way traffic"
"two-way streets"

{adj: valved} (of brass instruments) having valves

{adj: valvular} relating to or operating by means of valves

{n: French horn, horn} a brass musical instrument consisting of a conical tube that is coiled into a spiral and played by means of valves

{n: accelerator, accelerator pedal, gas pedal, gas, throttle, gun} a pedal that controls the throttle valve
"he stepped on the gas"

{n: accelerator, throttle, throttle valve} a valve that regulates the supply of fuel to the engine

{n: aortic stenosis} abnormal narrowing of the aortic valve

{n: aortic valve} a semilunar valve between the left ventricle and the aorta; prevents blood from flowing from the aorta back into the heart

{n: atrioventricular valve} either of two heart valves through which blood flows from the atria to the ventricles; prevents return of blood to the atrium

{n: ball valve} any valve that checks flow by the seating of a ball

{n: buckler mustard, Biscutalla laevigata} plant of southeastern Europe having yellow flowers like those of mustard and pods with open valves resembling bucklers

{n: bugle} a brass instrument without valves; used for military calls and fanfares

{n: bunsen burner, bunsen, etna} a gas burner used in laboratories; has an air valve to regulate the mixture of gas and air

{n: butterfly valve} a valve in a carburetor that consists of a disc that turns and acts as a throttle

{n: cardiac sphincter} the valve between the distal end of the esophagus and the stomach; the physiological sphincter at the esophagogastric junction

{n: choke} a valve that controls the flow of air into the carburetor of a gasoline engine

{n: clack valve, clack, clapper valve} a simple valve with a hinge on one side; allows fluid to flow in only one direction

{n: cornet, horn, trumpet, trump} a brass musical instrument with a brilliant tone; has a narrow tube and a flared bell and is played by means of valves

{n: cusp, leaflet} a thin triangular flap of a heart valve

{n: diode, rectifying tube, rectifying valve} a thermionic tube having two electrodes; used as a rectifier

{n: endocarditis} inflammation of the endocardium and heart valves

{n: endocardium} the membrane that lines the cavities of the heart and forms part of the heart valves

{n: exhaust valve} a valve through which burned gases from a cylinder escape into the exhaust manifold

{n: gas fitting} the fitting (pipes or valves or meters) that convey gas from the gas main to the gas fixtures of a building

{n: hand throttle} a hand-operated lever that controls the throttle valve

{n: heart murmur, cardiac murmur, murmur} an abnormal sound of the heart; sometimes a sign of abnormal function of the heart valves

{n: heart valve, cardiac valve} a valve to control one-way flow of blood

{n: heart valve} an implant that replaces a natural cardiac valve

{n: hydrant} a discharge pipe with a valve and spout at which water may be drawn from the mains of waterworks

{n: ileocecal valve} valve between the ileum of the small intestine and the cecum of the large intestine; prevents material from flowing back from the large to the small intestine

{n: inlet manifold} manifold that carries vaporized fuel from the carburetor to the inlet valves of the cylinders

{n: intake valve} a valve that controls the flow of fluid through an intake

{n: leakiness} the condition of permitting leaks or leakage
"the leakiness of the roof"
"the heart valve's leakiness"
"the leakiness of the boat made it dangerous to use"

{n: mitral stenosis, mitral valve stenosis} obstruction or narrowing of the mitral valve (as by scarring from rheumatic fever)

{n: mitral valve prolapse} cardiopathy resulting from the mitral valve not regulating the flow of blood between the left atrium and left ventricle of the heart

{n: mitral valve, bicuspid valve, left atrioventricular valve} valve with two cusps; situated between the left atrium and the left ventricle

{n: open-heart surgery} heart surgery in which the rib cage is spread open, the heart is stopped and blood is detoured through a heart-lung machine while a heart valve or coronary artery is surgically repaired

{n: papillary muscle} any of several muscles associated with the atrioventricular valves
"the papillary muscles contract during systole to prevent regurgitation of blood into the atria"

{n: petcock} regulator consisting of a small cock or faucet or valve for letting out air or releasing compression or draining

{n: poppet, poppet valve} a mushroom-shaped valve that rises perpendicular from its seat; commonly used in internal-combustion engines

{n: pulmonary valve} a semilunar valve between the right ventricle and the pulmonary artery; prevents blood from flowing from the artery back into the heart

{n: pyloric sphincter, pyloric valve, musculus sphincter pylori} the sphincter muscle of the pylorus that separates the stomach from the duodenum

{n: regurgitation} backflow of blood through a defective heart valve

{n: rheumatic fever} a severe disease chiefly of children and characterized by painful inflammation of the joints and frequently damage to the heart valves

{n: rheumatic heart disease} heart disease caused by recurrent episodes of rheumatic fever; characterized by changes in the myocardium or scarring of the heart valves that reduce the power of the heart to pump blood

{n: rocker arm, valve rocker} a lever pivoted at the center; used especially to push a valve down in an internal-combustion engine

{n: saddle oyster, Anomia ephippium} thin-shelled bivalve having the right valve deeply notched

{n: safety valve, relief valve, escape valve, escape cock, escape} a valve in a container in which pressure can build up (as a steam boiler); it opens automatically when the pressure reaches a dangerous level

{n: saxhorn} any of a family of brass wind instruments that resemble a bugle with valves

{n: semilunar valve} a heart valve with cusps shaped like half-moons; prevents blood from flowing back into the heart

{n: slide valve} valve that opens and closes a passageway by sliding over a port

{n: sluicegate, sluice valve, floodgate, penstock, head gate, water gate} regulator consisting of a valve or gate that controls the rate of water flow through a sluice

{n: subacute bacterial endocarditis} a chronic bacterial infection of the endocardium and heart valves; symptoms develop slowly

{n: tricuspid valve, right atrioventricular valve} valve with three cusps; situated between the right atrium and the right ventricle; allows blood to pass from atrium to ventricle and closes to prevent backflow when the ventricle contracts

{n: tube, vacuum tube, thermionic vacuum tube, thermionic tube, electron tube, thermionic valve} electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope

{n: valve-in-head engine} internal-combustion engine having both inlet and exhaust valves located in the cylinder head

{n: valve} a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it

{n: valve} control consisting of a mechanical device for controlling the flow of a fluid

{n: valve} device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone

{n: valvotomy, valvulotomy} incision into a stenosed cardiac valve to relieve the obstruction

{n: valvular heart disease} heart disease caused by stenosis of the cardiac valves and obstructed blood flow or caused by degeneration and blood regurgitation

{n: valvular incompetence} inability of a bodily valve to close completely

{n: valvule, valvelet, valvula} a small valve

{n: valvulitis} inflammation of a valve (especially of a cardiac valve as a consequence of rheumatic fever)

{n: vegetation} an abnormal growth or excrescence (especially a warty excrescence on the valves of the heart)

{v: check} arrest the motion (of something) abruptly
"He checked the flow of water by shutting off the main valve"

{v: gate} control with a valve or other device that functions like a gate

{v: see, check, insure, see to it, ensure, control, ascertain, assure} be careful or certain to do something ; make certain of something
"He verified that the valves were closed"
"See that the curtains are closed"
"control the quality of the product"


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