clotnoun
Studies have shown that eating cranberries can help to prevent blood clots that can cause strokes.
She was hit in the back of her calf, causing a massive blood clot that required surgery.
The team used heparin to prevent blood clots during the long surgery.
Deep vein thrombosis is when a blood clot forms in a vein, usually in a leg.

SMART Vocabulary: related words and phrases

Masses and large amounts of things
accumulation
any number of thingsidiom
armload
backlog
bolus
flood
foam
inundation
lion
logjam
many
motherlode
pile
sight
stack
the lion's shareidiom
wave after/upon waveidiom
wedge
welter
wodge