Definition of 'swarm'. swarm. A swarm of bees or other insects is a large group of them flying together. When bees or other insects swarm, they move or fly in a large group. A dark cloud of bees comes swarming out of the hive. When people swarm somewhere, they move there quickly in a large group. People swarmed to the shops, buying up everything in sight. A swarm of people is a large group of them moving about quickly. A swarm of people encircled the hotel. Today at the crossing there were swarms of tourists taking photographs. Synonyms: multitude, crowd, mass, army More Synonyms of swarm
The cause of most liver cysts is unknown. Liver cysts can be present at birth or can develop at a later. time. They usually grow slowly and are not detected until adulthood. Some cysts are caused by a parasite, echinococcus that is found in sheep in different parts of the world.
Kidney cyst is a closed pouch containing fluid that forms in the kidneys. These cysts are most often non-cancerous. However, over time, when renal cyst grows to a certain size, it will oppress the kidney surrounding tissues or organs. In such a condition, it is easy to cause the burst of blood vessels. That is one reason how bleeding cyst occurs. In addition, causes of hemorrhagic cysts include surgery, chemotherapy, radiation, or infection. The bigger renal cysts can be removed by the surgery, but sometimes, the surgery will cause trauma on the cysts, which lead to hemorrhagic cysts.