transient ischemic attack

noun, Pathology
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.
Abbreviation: TIA.
transient ischemic attack in Medicine

transient ischemic attack n.
Abbr. TIA
A temporary blockage of the blood supply to the brain caused by a blood clot and usually lasting ten minutes or less, during which dizziness, blurring of vision, numbness on one side of the body, and other symptoms of a stroke may occur. Also called ministroke.