dewormer

/diˈwɜrmər/
noun
  1. A medicine or substance used to remove parasitic worms from the body of an animal or human.
    • The vet gave the puppy a dewormer to get rid of roundworms.
    • You can buy a dewormer at the pet store for your cat.
    • After taking the dewormer, the dog passed the worms in its stool.
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