Rat-tail — Like a rat's tail in form; as, a rat-tail file, which is round, slender, and tapering. See Illust. of File.
Rat-tail — An excrescence growing from the pastern to the middle of the shank of a horse.
Rat-tail — The California chimaera. See Chimaera.
Rat-tail — Any fish of the genus Macrurus. See Grenadier, 2.
These Also :