deep vein thrombosis
noun /ˌdiːp veɪn ˌθrɒmˈbəʊsɪs/
/ˌdiːp veɪn ˌθrɑːmˈbəʊsɪs/
[uncountable, countable] (abbreviation DVT)
(medical)- a serious condition caused by a blood clot (= a thick mass of blood) forming in a vein
- Passengers on long-haul flights are being warned about the risks of deep vein thrombosis.