blockage

Short definition from Wiktionary

Noun

1. 1
   The state or condition of being blocked.
2. 2
   The thing that is the cause of such a state, blocking a passage.
3. 3
   Occlusion of a lumen (especially that of a blood vessel or intestine), or the thing that is causing it; as: Synonym of thrombosis, thromboembolism, or embolism.
4. 4
   Occlusion of a lumen (especially that of a blood vessel or intestine), or the thing that is causing it; as: Synonym of constipation (“impairment of feces passage”).