What is node?
node meaning in Military terminology / glossary / dictionary is:
1. A location in a mobility system where a movement requirement is originated, processed for onward movement, or terminated.
Source: JP 3-17
2. In communications and computer systems, the physical location that provides terminating, switching, and gateway access services to support information exchange.
Source: JP 6-0
3. An element of a system that represents a person, place, or physical thing.
Source: JP 3-0