Definitions

1. noun

a device that controls the flow of a fluid, especially by opening or closing a passage

“The engineer adjusted the valve to regulate the water pressure.”

2. noun

a structure in the heart of a vertebrate, consisting of one or more layers of tissue that separate the chambers and control the flow of blood

“The doctor examined the patient’s heart valve and detected a problem.”

3. noun

a device or part that is used to control or regulate the flow of something

“The valve on the faucet was stuck, and the water wouldn’t turn off.”

4. verb

to control or regulate the flow of something, especially by opening or closing a passage

“The engineer will valve the water to prevent it from overflowing.”