Definitions

1. proper noun

The North American Aerospace Defense Command, a United States-Canadian organization that tracks and monitors objects in space, particularly satellites and asteroids.

“The NORAD Santa Tracker was a popular holiday tradition.”

2. noun

A North American air defense command, now part of the North American Aerospace Defense Command.

“The US Air Force has been involved in NORAD operations since its inception.”

3. verb

To track or monitor (objects in space) using the facilities of NORAD.

“The NORAD system was used to track the asteroid that passed close to Earth.”