n. A variety of dog with long, smooth, and pendulous ears, remarkable for the acuteness of its smell, and employed to recover game or prey which has escaped, tracing a wounded animal by the blood it has spilled (whence its name), or by any other effluvium or halitus left on a trail which it follows by scent.n. Figuratively, a man who hunts for blood; a relentless persecutor.