deep-vein thrombosis

[ deep-veyn ]
/ ˈdipˌveɪn /

noun Pathology.

a condition in which a blood clot forms in a vein deep beneath the skin, typically in the leg or pelvic area: Immobility and lack of exercise are risk factors for deep-vein thrombosis.
Also called deep-vein thrombus. a blood clot in a vein deep beneath the skin.
Also called DVT, deep-ve·nous thrombo·sis [deep-vee-nuh s] /ˈdipˌvi nəs/. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for deep-vein thrombosis

deep-vein thrombosis

noun plural -ses (-siːz)

a blood clot in one of the major veins, usually in the legs or pelvis; can be caused by prolonged sitting in the same position, as on long-haul air flightsAbbreviation: DVT
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012