1. Study of the behavior and activity of organisms using remote detection and transmission equipment; radio tracking.
2. The technique of monitoring vital processes and transmitting data without wires to a point remote from the subject.
3. The tracking of a free-ranging animal, or the monitoring of one or more of its physiological conditions, by beans of electronic equipment that receives signals from a radio transmitter or similar device attached to, or embedded in the animal.

Detection of a function within the body of a human or animal and transmission, usually by radio, to a location outside the body where data are recorded.