prevent (someone or something) from (doing something)

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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
References in periodicals archive ?
Anticipating these clots and preventing them from choking off arteries may someday be as simple-or as complex-as taking an artery's temperature.
* The carboxylic radicals react with the amines, preventing them from penetrating the polyester cord.
A drug that weakens the bonds between proteins or that stiffens individual protein "bricks," preventing them from stretching or compressing as needed to pack tightly together, might create a leaky fortress.
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