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.

---

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

---

Etymology

Origin of preventer

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

Example Sentences

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 • Mar. 11, 2024

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

From BBC • Feb. 5, 2022

Halliburton, the Big Oil services firm, was also blamed for faulty cementing of the well, and Cameron, the maker of the blowout preventer, was scrutinized over the the device’s failure.

From Washington Post • Apr. 19, 2020

The blowout preventer was supposed to be the last-ditch defense against high-pressure gas and oil bursting out of the well.

From Slate • Sep. 30, 2016

Even then don't plant the tubers unless you will take the pains to soak the seed potatoes in scab preventer.

From Three Acres and Liberty by Hall, Bolton