February 03, 2021
Learner's Word of the Day
valve /ˈvælv/ noun
valve
/ˈvælv/
noun

plural valves

Surgery to replace a heart valve
Surgery to replace a heart valve
Learner's definition of VALVE

[count]

1 : a mechanical device that controls the flow of liquid, gas, etc., by opening and closing

  • They turned off the main water valve to the house.

2 : a device in some musical instruments (such as trumpets) that you press to play different notes

3 medical : a structure in the heart, stomach, etc., that temporarily stops the flow of fluid or that allows fluid to move in one direction only

  • a heart valve

4 British : VACUUM TUBE

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