Definition of radio tag in English:

radio tag

noun

  • A very small radio transmitter that can be attached to an object, animal, etc., to enable its location to be tracked from the radio signals it transmits.

Origin

1970s; earliest use found in Ecological Monographs. From radio- + tag.

Pronunciation

radio tag

/ˈreɪdɪəʊ ˌtaɡ/