Rat-tail a. Like a rat's tail in form; as, a rat-tail file, which is round, slender, and tapering. See Illust. of File.
Rat-tail, n.
1. Far. pl. An excrescence growing from the pastern to the middle of the shank of a horse.
2. Zool. (a) The California chimaera. See Chimaera. (b) Any fish of the genus Macrurus. See Grenadier, 2.
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rattail
n : deep-sea fish with a large head and body and long tapering
tail [syn: grenadier, rattail fish]