Valve
/vˈælv/
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Definition
(noun) A device that controls the flow of a gas or fluid through a space, such as a pipe, manifold, or plenum.
Sentence Examples
The exit flow rate is proportional to the pressure difference around the exit valve.
In an unusual move, this school's big band uses slide trumpets and valve trombones exclusively.
CEFR Practice Quiz
The technician had to replace a broken ____ in the machine to stop the water from leaking onto the floor today.