0 a chain in the form of a loop (= a circle that can be made tighter), put around a dog's neck to prevent it from pulling on its lead:
When the dog pulls ahead while on the leash, the choke chain tightens and it will experience discomfort.
Dogs should not be yanked cruelly on choke chains and punished physically if they don't do as they're told.
A surprising number of owners put up with dogs that pull on every walk and some old-fashioned trainers still recommend choke chains.
My pup won't stop pulling on his lead, even though I use a choke chain.
