preventer

American  

[pri-ven-ter] / prɪˈvɛn tər /

noun

1. a person or thing that prevents.

2. Nautical.

   1. any of various lines set up to reinforce or relieve ordinary running or standing rigging.

   2. a line for preventing a sail from jibbing.

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preventer British  

/ prɪˈvɛntə /

noun

1. a person or thing that prevents

2. nautical a rope or other piece of gear rigged to prevent a sail from gybing

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Etymology

Origin of preventer

First recorded in 1580–90; prevent + -er ¹

Example Sentences

"People think if you take your blue inhaler you'll be OK, and very often children and adults forget to take the preventer inhalers, and that's strongly associated with having further asthma attacks and increasing the risk of asthma deaths."

From BBC

A diligent plumber will also calculate the pressure loss from the height of the bathroom above the water meter, the pressure loss through the water meter, a backflow preventer and any other pressure regulators.

From Seattle Times

“Importantly, the rule requires that those testing and reporting on blowout preventers be certified and meet federal standards. It also requires that blow-out preventer failure reports be sent to BSEE,” Sakashita said in an email exchange.

From Seattle Times

“Importantly, the rule requires that those testing and reporting on blowout preventers be certified and meet federal standards. It also requires that blow-out preventer failure reports be sent to BSEE,” Sakashita said in an email exchange.

From Washington Times

She and Sebastian still have "preventer" medication to reduce the risk of an attack and "reliever" medication in case one happens.

From BBC