noun Download 🔗Share A device that controls the flow of a gas or fluid through a pipe. Examples : "The water valve needs to be turned off to prevent a leak. " technical device machine industry part system Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A device that admits fuel and air into the cylinder of an internal combustion engine, or one that allows combustion gases to exit. Examples : "The mechanic replaced the faulty valve in the car engine. " device machine part technical vehicle energy fuel industry Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share One or more membranous partitions, flaps, or folds, which permit the passage of the contents of a vessel or cavity in one direction, but stop or control the flow in the opposite direction Examples : "the ileocolic, mitral, and semilunar valves" part physiology organ anatomy technical machine device function system biology science Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share One of the leaves of a folding-door, or a window-sash. Examples : "The old wooden window had several worn valves that needed replacing. " architecture part Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A vacuum tube. Examples : "My grandfather tinkers with old radios; he says they sound better because they use valves instead of transistors. " electronics technology device machine Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share One of the pieces into which certain fruits naturally separate when they dehisce. Examples : "After the pea pod dried in the sun, each valve separated, releasing the peas. " fruit plant part Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A small portion of certain anthers, which opens like a trapdoor to allow the pollen to escape, such as in the barberry. Examples : "The barberry anther has a tiny valve that pops open, releasing pollen when a bee lands on it. " biology plant part Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share One of the pieces or divisions of bivalve or multivalve shells. Examples : "The clam's shell has two valves that open and close. " animal biology part Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share One of the two similar portions of the shell of a diatom. Examples : "Under the microscope, the diatom's valve showed intricate patterns. " biology organism part plant science Chat with AIVocabulary GamePractice Reading
verb Download 🔗Share To control (flow) by means of a valve. Examples : "The gardener valved the water to the rose bushes, controlling how much water they received. " technical machine system device Chat with AIVocabulary GamePractice Reading