Definition of deep vein thrombosis noun from the Oxford Advanced American Dictionary

 

deep vein thrombosis

 noun
noun
 
[uncountable, countable](abbreviation DVT)(medical)
 
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a serious condition caused by a blood clot (= a thick mass of blood) forming in a vein Passengers on long-distance flights are being warned about the risks of deep vein thrombosis.
See the Oxford Advanced Learner's Dictionary entry: deep vein thrombosis