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• radio collar
  radio collar

  noun

  a neck band equipped with a small radio transmitter and attached to an animal for tracking its movement in the wild.
• radio-collar
  radio-collar

  verb (used with object)

  to attach a radio collar to (an animal).

radio collar

¹ American  

noun

1. a neck band equipped with a small radio transmitter and attached to an animal for tracking its movement in the wild.

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radio-collar ² American  

[rey-dee-oh-kol-er] / ˈreɪ di oʊˌkɒl ər /

verb (used with object)

1. to attach a radio collar to (an animal).

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Example Sentences

Each pine marten has been fitted with a radio collar so researchers can follow their fortunes over the next six to nine months.

From BBC • Oct. 7, 2025

Each bear will have a radio collar for their first few years in their new home, offering semiregular updates on the bears’ whereabouts.

From Seattle Times • May 6, 2024

The 17-year-old bear wears a GPS-equipped radio collar that should track its movements.

From Reuters • Apr. 12, 2023

The Italian news media breathlessly tracked his movements, relishing the rebellious bear, while forest rangers tracked him via a radio collar, hoping he would remain safe and far away.

From New York Times • Jan. 24, 2023

Assuming that the panda cub successfully meets the milestones of training, and that he remains healthy, he will be fitted with a radio collar for monitoring and moved to stage three—release into the wild habitat.

From "Camp Panda" by Catherine Thimmesh