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valve
2 ENTRIES FOUND:
plural valves
plural valves
Learner's definition of VALVE
[count]
1
: a mechanical device that controls the flow of liquid, gas, etc., by opening and closing阀门；气门；闸 — see picture at plumbing; see also safety valve
- They turned off the main water valve to the house.他们关闭了这栋房子的主水闸。
2
: a device in some musical instruments (such as trumpets) that you press to play different notes（小号等乐器的）阀键，活塞 — see picture at brass instrument
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（心脏、胃等的）瓣，瓣膜
- a heart valve心脏瓣膜
4
1
a
: any of numerous mechanical devices by which the flow of liquid, gas, or loose material in bulk may be started, stopped, or regulated by a movable part that opens, shuts, or partially obstructs one or more ports or passageways
also : the movable part of such a device
b
: a device in a brass instrument for quickly channeling air flow through an added length of tube in order to change the fundamental tone by some definite interval
c
chiefly British : electron tube
2
[borrowed from Medieval Latin valva, going back to Latin] : a bodily structure (such as the mitral valve) that closes temporarily a passage or orifice or permits movement of fluid in one direction only
3
[borrowed from New Latin valva, going back to Latin] : one of the distinct usually hinged and movable pieces of which the shell of some shell-bearing animals (such as lamellibranch mollusks, brachiopods, and barnacles) consists
Example Sentences
They turned off the main water valve to the house.
Recent Examples on the Web For perspective, ARMs accounted for 17% of all mortgage originations from 1990-2008, serving as an affordability pressure release valve in all past rate spike cycles. 
Rick Palacios, Fortune, 9 Sep. 2022 Her performance doubles as a release valve for the pressures around her. Lovia Gyarkye, The Hollywood Reporter, 8 Sep. 2022 Environmental organizers, like Williams, understand there are medical devices, such as a heart valve, that may need to be treated with EtO to prevent infections. Tony Briscoestaff Writer, Los Angeles Times, 9 Aug. 2022 An extension of Interstate 57 could act as a relief valve for traffic on Interstate 40 and provide an economic impact for part of northeast Arkansas. Ryan Tarinelli, Arkansas Online, 10 July 2022 These often serve as a pressure relief valve where teammates can talk about little things that have disgruntled them over the last month. Randy Shattuck, Forbes, 1 June 2022 Oakland is a hub for the nation’s agricultural exporters and has served as a relief valve for importers during backups at the nation’s busiest container complex 400 miles to the south at Los Angeles and Long Beach. Paul Berger, WSJ, 5 May 2022 Bruce Brown, the team’s consummate role player, had 18 points, 9 rebounds and 8 assists, often offering himself as a crucial release valve on offense when Durant and Irving would get blitzed by defenders. New York Times, 13 Apr. 2022 The arrival of so many Cubans is straining communities here in South Florida, while acting once more as a release valve for communist authorities facing potential unrest amid the worst economic crisis to grip the island in decades. Washington Post, 7 Apr. 2022 See More
Rick Palacios, Fortune, 9 Sep. 2022 Her performance doubles as a release valve for the pressures around her. Lovia Gyarkye, The Hollywood Reporter, 8 Sep. 2022 Environmental organizers, like Williams, understand there are medical devices, such as a heart valve, that may need to be treated with EtO to prevent infections. Tony Briscoestaff Writer, Los Angeles Times, 9 Aug. 2022 An extension of Interstate 57 could act as a relief valve for traffic on Interstate 40 and provide an economic impact for part of northeast Arkansas. Ryan Tarinelli, Arkansas Online, 10 July 2022 These often serve as a pressure relief valve where teammates can talk about little things that have disgruntled them over the last month. Randy Shattuck, Forbes, 1 June 2022 Oakland is a hub for the nation’s agricultural exporters and has served as a relief valve for importers during backups at the nation’s busiest container complex 400 miles to the south at Los Angeles and Long Beach. Paul Berger, WSJ, 5 May 2022 Bruce Brown, the team’s consummate role player, had 18 points, 9 rebounds and 8 assists, often offering himself as a crucial release valve on offense when Durant and Irving would get blitzed by defenders. New York Times, 13 Apr. 2022 The arrival of so many Cubans is straining communities here in South Florida, while acting once more as a release valve for communist authorities facing potential unrest amid the worst economic crisis to grip the island in decades. Washington Post, 7 Apr. 2022 See More Word History
Etymology
Middle English, "leaf of a folding door," borrowed from Latin valva (usually in plural valvae) "double or folding door, leaf of such a door," perhaps going back to an early derivative of the base of volvere "to roll, make turn" — more at wallow entry 1
First Known Use
14th century, in the meaning defined at sense 5
Time Traveler
The first known use of valve was in the 14th century Phrases Containing valve
noun
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