butterfly butterfly stroke | a swimming stroke in which the arms are thrown forward together out of the water while the feet kick up and down |
damper | a depressing restraint, rain put a damper on our picnic plans |
butterfly ray | a stingray with a short tail and a broad fin |
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 |
butterfly | diurnal insect typically having a slender body with knobbed antennae and broad colorful wings |
nymphalid nymphalid butterfly brush-footed butterfly four-footed butterfly | medium to large butterflies found worldwide typically having brightly colored wings and mucheduced nonfunctional forelegs carried folded on the breast |
mourning cloak mourning cloak butterfly Camberwell beauty Nymphalis antiopa | of temperate regions, having dark purple wings with yellow borders |
tortoiseshell tortoiseshell butterfly | brilliantly colored, larvae feed on nettles |
ringlet ringlet butterfly | any of various butterflies belonging to the family Satyridae |
comma comma butterfly Polygonia comma | anglewing butterfly with a comma-shaped mark on the underside of each hind wing |
emperor butterfly emperor | large richly colored butterfly |
peacock peacock butterfly Inachis io | European butterfly having reddish-brown wings each marked with a purple eyespot |
danaid danaid butterfly | large tropical butterfly with degenerate forelegs and an unpleasant taste |
monarch monarch butterfly milkweed butterfly Danaus plexippus | large migratory American butterfly having deep orange wings with black and white markings, the larvae feed on milkweed |
pierid pierid butterfly | any of numerous paleolored butterflies having three pairs of well-developed legs |
cabbage butterfly | white butterfly whose larvae (cabbageworms) feed on cabbage |
southern cabbage butterfly Pieris protodice | common North American form of cabbage butterfly |
sulphur butterfly sulfur butterfly | any of numerous yellow or orange butterflies |
lycaenid lycaenid butterfly | any of various butterflies of the family Lycaenidae |
hairstreak hairstreak butterfly | small butterflies having striped markings under the wings |
butterfly fish | small usually brilliantly colored tropical marine fishes having narrow deep bodies with large broad fins, found worldwide |
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 |
damper muffler | a device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations |
damper | a movable iron plate that regulates the draft in a stove or chimney or furnace |
damper block piano damper | damper consisting of a small felted block that drops onto a piano string to stop its vibration |
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 |
wing nut wing-nut wing screw butterfly nut thumbnut | a threaded nut with winglike projections for thumb and forefinger leverage in turning |
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 |