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Related to preventer: Blowout preventer


v. pre·vent·ed, pre·vent·ing, pre·vents
1. To keep from happening; avert: took steps to prevent the strike.
2. To keep (a person or thing) from doing something; impede: prevented us from winning; prevented the disease from spreading.
3. Archaic
a. To anticipate or counter in advance.
b. To come before; precede.
To present an obstacle: There will be a picnic if nothing prevents.

[Middle English preventen, to anticipate, from Latin praevenīre, praevent- : prae-, pre- + venīre, to come; see gwā- in Indo-European roots.]

pre·vent′a·bil′i·ty, pre·vent′i·bil′i·ty n.
pre·vent′a·ble, pre·vent′i·ble adj.
pre·vent′er n.
Synonyms: prevent, preclude, avert, obviate, forestall
These verbs mean to stop or hinder something from happening, especially by advance planning or action. Prevent implies anticipatory counteraction: "Some contemporaries believed that capitalism and the rise of an international economy would prevent war among 'civilized' states" (John Howard Morrow).
To preclude is to exclude the possibility of an event or action: "a tranquillity which ... his wife's presence would have precluded" (John Henry Newman).
Avert and obviate imply that something, such as a difficulty or necessity, has been removed or avoided: The pilot's quick thinking averted an accident. The short duration of the journey obviated the need for large food supplies. Forestall usually suggests anticipatory measures taken to counteract, neutralize, or nullify the effects of something: We installed an alarm system to forestall break-ins.


1. a person or thing that prevents
2. (Nautical Terms) nautical a rope or other piece of gear rigged to prevent a sail from gybing
References in classic literature ?
During the most violent shocks of the Typhoon, the man at the Pequod's jaw-bone tiller had several times been reelingly hurled to the deck by its spasmodic motions, even though preventer tackles had been attached to it --for they were slack -- because some play to the tiller was indispensable.
88 Energy Ltd said it has fruitfully examined the blow out preventer in the Icewine-1 well in Alaska, that is hoped to be accomplished prior year end.
We can also help with tips such as rinsing the mouth with water after using a preventer inhaler, to help reduce the chance of oral thrush.
The Porter's five forces model is used for manufacturers of double hulled tankers and blowout preventer to study the profitability and industry structure of the global oil spill management market.
Dr Samantha Walker, Director of Research and Policy at Asthma UK, says: "If you are on the right preventer medicines at the right dose then you should manage.
Drain and winterize underground irrigation systems, including yard sprinklers and backflow preventers; wrap the backflow preventer with insulating material.
Take your preventer inhaler as prescribed by your GP or asthma nurse, and make sure you carry your reliever inhaler on you at all times in case you have an attack.
Hospital admissions for asthma-related illness can increase in September as a result of children forgetting to take their preventer inhalers during the long school break.
Advanced Logistics LLC has updated versions of its Satellite Assisted Marine Management (SAMM) and Preventer (preventative maintenance) software packages as well as its comprehensive, web-based Logistics Management Suite family of applications.
Dr Glenis Scadding, consultant physician in allergy and rhinology at the Royal National Throat, Nose and Ear Hospital in London, said: "It is vital that parents do not stop giving their children asthma inhaled corticosteroid preventer medication.
Chemical Safety Board concentrated on what went wrong with the blowout preventer and blamed bad management and operations.
d of It sh them A child should be on a preventer every day, whether well or not, and medication should not be stopped unless the doctor says so.