(one's) blood runs cold(redirected from someone's blood runs cold)
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(one's) blood runs cold
One becomes seized by an acute and intense sensation of fear, panic, horror, or dread. My blood ran cold when I overheard that a police officer had been asking about me at work. Janet could feel her blood run cold when the murderer she was testifying against walked into the courtroom.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.