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butterfly valve
noun
- a clack valve having two flaps with a common hinge.
- a valve, as the throttle valve in a carburetor, that swings about a central axis across its face.
butterfly valve
noun
- a disc that acts as a valve by turning about a diameter, esp one used as the throttle valve in a carburettor
- a non-return valve consisting of two semicircular plates hinged about a common central spindle
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Word History and Origins
Origin of butterfly valve1
First recorded in 1860–65
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Example Sentences
In the secondary system A is a cold-air passage, T a butterfly valve and J a gasoline jet discharging into the cold-air passage.
From Project Gutenberg
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[ak-suh-lot-l ]
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