A computer on the Internet that has a complete or abbreviated copy of the Bitcoin blockchain. As of 2026, there are more than 15,000 discoverable Bitcoin nodes; however, there can be as many as 75,000 ...

Swollen lymph nodes in the groin are often caused by infections or injuries affecting the lower body, but they can also be a sign of something more serious. A doctor can help determine the cause and ...

Lymph nodes are small (about 1-2 centimeters around or the size of a couple of AAA batteries side by side) oval or kidney-shaped structures that are a part of your immune system. They're part of your ...

A Bitcoin node is a computer that runs Bitcoin software to validate and relay transactions across the network. Like servers in a traditional financial system, nodes store a complete copy of the ...

The lymph nodes in your neck and other parts of your body can be swollen for years, but this does not always mean it is a sign of cancer. You might have a common cold, throat infection, or another ...

Cervical lymph nodes are small nodes or glands in the neck. Swelling in the neck may indicate a nearby infection or other health condition. Treatment for cervical lymph nodes can depend on the cause.

A hierarchical data structure. Depending on the application, each element of a hierarchy may be considered a node. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.