tracking dog
US /ˈtrækɪŋ dɔːɡ/
UK /ˈtrækɪŋ dɔːɡ/
1.
a dog trained to follow the scent of a person or animal
:
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The police used a tracking dog to find the missing hiker.
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A well-trained tracking dog can follow a scent for miles.
a dog trained to follow the scent of a person or animal