n.
(一种尤指对血迹嗅觉敏锐的)警犬

Sleuthhound \Sleuth"hound`\, n. [See {Sleuth}, and cf.
{Slothound}.] (Zo["o]l.)
A hound that tracks animals by the scent; specifically, a
bloodhound. [Spelt variously {slouthhound}, {sluthhound},
etc.]