From Middle English blodhound, blodhond, equivalent to blood + hound. Cognate with Dutch bloedhond (“bloodhound”), Middle Low German blōthunt (“bloodhound”), German Bluthund (“bloodhound”), Danish blodhund (“bloodhound”), Swedish blodhund (“bloodhound”). The detective sense follows from the dog's ability to follow a trail.
bloodhound (plural bloodhounds)
- A large scenthound famed for its ability to follow a scent many days old, over vast distances. This dog is often used as a police dog to track missing people, fleeing suspects, or escaped prisoners.
- (figuratively) A detective or other person skilled at finding people or clues.
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