also: おおかみづめ
dewclaw
Refers to the vestigial digit (dewclaw) on the feet of dogs, cats, and other animals. Used in veterinary, zoological, and pet-owner contexts.
A dog's dewclaws can grow too long if not trimmed regularly.
Cats have dewclaws on their front paws.
Compound of 狼 (wolf) and 爪 (claw). The term likely arose from the resemblance of the dewclaw to a wolf's claw, though the exact origin is uncertain.