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Meaning of transient ischemic attack

tran'sient ische'mic attack'

Pronunciation: [key]
— Pathol. Pathol.
  1. a brief vascular spasm in which a partially blocked artery impedes blood flow to the brain, resulting in symptoms such as impaired vision, dizziness, numbness, or unconsciousness. Abbr.: TIA
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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