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Related to preventer: Blowout preventer

a stumble may prevent a fall

proverb A setback or obstacle may ultimately prevent worse problems. A: "Maybe it's a good thing you closed the business when you did—you would have lost so much more money in this recession." B: "That is true. They do say that a stumble may prevent a fall." I know it's hard to think of it this way, but a stumble may prevent a fall. Yes, you were hoping your script would get picked up by a studio, but maybe it's better that that didn't happen right now—they'd be liable to exploit a young unknown like yourself. Well, try not to dwell on the adversity we're facing—a stumble may prevent a fall, after all.
See also: fall, may, prevent, stumble

prevent (someone or something) from (doing something)

To stop a person or thing from being able to do something. Something is preventing the machine from turning off, so the motor is getting overheated. The government is trying to prevent us from exercising our right to free speech.
See also: prevent
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

prevent someone from doing something

to keep someone from doing something. You can't prevent me from doing it! We must try to prevent her from going back there.
See also: prevent
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
Mobile Identity Theft Preventer carries the same attributes as its desktop version - yet of course, has the tweaks and adjustments required to meet the mobile-unique privacy safety demands," noted Moshe Layani, ShieldApps' President.
The blowout preventer sealed the well temporarily, but then it failed and that caused the massive spill, the new 166-page report found.
According to Cameron it delivered the industry's first and only 13-5/8" 25,000 psi blowout preventer to Freeport-McMoRan in 2011.
"The blowout preventer failed to work and perform the function it was designed and manufactured to perform - i.e., to secure the well," BP said in the complaint.
But it said it would not be finished until all the facts were in, including an inspection of the just-retrieved blowout preventer.
BP and government officials did not expect oil to leak from the well once the failed blowout preventer was lifted off.
The 50-foot, 300-ton blowout preventer was not expected to reach the
Final preparation could involve removing the current blowout preventer stack atop the well and replacing it with a "BOP" better able to withstand anticipated bottom-kill pressures, Allen said.
Invented in the 1920s, the blowout preventer has significantly improved safety of oilfields.
In that groups are the cholesterol drug Lipitor (atorvastatin), the blood clot preventer Plavix (clopidogrel), and the asthma medication Singulair (montelukast).
Called a "blowout preventer," this last line of defense for deepwater drilling rigs is a mammoth underwater device (it stands 13 stories tall and weighs hundreds of thousands of pounds) that sits on the seabed atop the wellhead and has the sole purpose of cutting the flow of oil if an explosion, or anything else, compromises the structural integrity of the excavation operation.
BP spokesman Toby Odone said the document appeared to be genuine but the estimate applied only to a situation in which a key piece of equipment called a blowout preventer is removed.
Toby Odone, a spokesman for the British-based energy giant, said the worst-case estimate applied only to a situation in which a key piece of equipment called a blowout preventer was removed.
The work to be performed provides for facility management services; facilities investment services consisting of operation, maintenance, repair, minor construction and alteration services for buildings, structures and facility systems, water treatment services, backflow preventer maintenance, locksmith services, relamping services, roof inspections, fire protection, etc.; pest control; grounds maintenance; street sweeping services; and environmental services consisting of completing samplings and inspections.