Meaning & use
Preventer
Last updated
A person, device, or substance that stops something from happening, especially a controller medication used to reduce the frequency of asthma attacks.
See it in a sentence
Her doctor prescribed a daily preventer inhaler to control her asthma symptoms.
Sailors rigged a preventer to stop the boom from swinging dangerously in the strong wind.
A note on using this word
In British medical usage, a 'preventer' inhaler is contrasted with a 'reliever' inhaler, which treats symptoms immediately rather than preventing them.
Words with a similar meaning
inhibitorsafeguard
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Words with an opposite meaning
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