valve | one of the paired hinged shells of certain molluscs and of brachiopods |
valve | the entire one-piece shell of a snail and certain other molluscs |
accelerator throttle throttle valve | a valve that regulates the supply of fuel to the engine |
ball valve | any valve that checks flow by the seating of a ball |
butterfly valve | a valve in a carburetor that consists of a disc that turns and acts as a throttle |
clack valve clack clapper valve | a simple valve with a hinge on one side, allows fluid to flow in only one direction |
diode rectifying tube rectifying valve | a thermionic tube having two electrodes, used as a rectifier |
exhaust valve | a valve through which burned gases from a cylinder escape into the exhaust manifold |
heart valve | an implant that replaces a natural cardiac valve |
intake valve | a valve that controls the flow of fluid through an intake |
poppet poppet valve | a mushroom-shaped valve that rises perpendicularly from its seat, commonly used in internalombustion engines |
rocker arm valve rocker | a lever pivoted at the center, used especially to push a valve down in an internalombustion engine |
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 |
slide valve | valve that opens and closes a passageway by sliding over a port |
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 |
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 |
valve | control consisting of a mechanical device for controlling the flow of a fluid |
valve | device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone |
valve-in-head engine | internalombustion engine having both inlet and exhaust valves located in the cylinder head |
mitral valve bicuspid valve left atrioventricular valve | valve with two cusps, situated between the left atrium and the left ventricle |
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 |
atrioventricular valve | either of two heart valves through which blood flows from the atria to the ventricles, prevents return of blood to the atrium |
aortic valve | a semilunar valve between the left ventricle and the aorta, prevents blood from flowing from the aorta back into the heart |
pulmonary valve | a semilunar valve between the right ventricle and the pulmonary artery, prevents blood from flowing from the artery back into the heart |
semilunar valve | a heart valve with cusps shaped like half-moons, prevents blood from flowing back into the heart |
heart valve cardiac valve | a valve to control one-way flow of blood |
valve | a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it |
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 |
pyloric sphincter pyloric valve musculus sphincter pylori | the sphincter muscle of the pylorus that separates the stomach from the duodenum |
invalid shut-in | someone who is incapacitated by a chronic illness or injury |
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 |
mitral stenosis mitral valve stenosis | obstruction or narrowing of the mitral valve (as by scarring from rheumatic fever) |
hush quieten silence still shut up hush up | cause to be quiet or not talk, Please silence the children in the church! |
keep quiet shut one's mouth keep one's mouth shut | refrain from divulging sensitive information, keep quiet about confidential information, Don't tell him any secrets--he cannot keep his mouth shut! |
close up clam up dummy up shut up belt up button up be quiet keep mum | refuse to talk or stop talking, fall silent, The children shut up when their father approached |
close shut | move so that an opening or passage is obstructed, make shut, Close the door, shut the window |
close shut | become closed, The windows closed with a loud bang |
lock in lock away lock put away shut up shut away lock up | place in a place where something cannot be removed or someone cannot escape, The parents locked her daughter up for the weekend, She locked her jewels in the safe |
shut off block off close off | block off the passage through, We shut off the valve |
enclose close in inclose shut in | surround completely, Darkness enclosed him, They closed in the porch with a fence |
shut off close off | isolate or separate, She was shut off from the friends |
close up close fold shut down close down | cease to operate or cause to cease operating, The owners decided to move and to close the factory, My business closes every night at P.M., close up the shop |
exclude keep out shut out shut | prevent from entering, shut out, The trees were shutting out all sunlight, This policy excludes people who have a criminal record from entering the country |
shut off close off | stem the flow of, shut off the gas when you leave for a vacation |
homebound housebound shut-in | confined usually by illness |
pent shut up(p) | closely confined |
introvertish shut-in | somewhat introverted |
open-and-shut | so obvious as to be easily solved or decided, an open-and-shut case |
shut unopen closed | not open, the door slammed shut |
closed shut | used especially of mouth or eyes, he sat quietly with closed eyes, his eyes were shut against the sunlight |