collision detection

(1) In networks, the process by which a node determines that acollision has occurred. Collisions occur with most networks, so aprotocol is required to recover from such events. Ethernet usesCSMA/CD as its collision detection and recovery system.

(2) In virtual reality environments, collision detection is a program interface that determines how close a user is to a real physical objects and will stop their movement before colliding with the object.