thrombosis

noun

1. (countable, uncountable)The formation of thrombi in the blood vessels of a living organism, causing obstruction of the circulation.

   “The cure for thrombosis at the heart of London was to start work quickly on the new Victoria line. A high-level decision to proceed with this railway was urgently awaited”

   “Blood-clotting platelets had surged like minnows to the site of injury, clumping together to form a thrombosis that blocked the artery, causing a heart attack and tissue death.”