(1):

(a.) Like a rat's tail in form; as, a rat-tail file, which is round, slender, and tapering. See Illust. of File.

(2):

(n.) The California chimaera. See Chimaera.

(3):

(n.) Any fish of the genus Macrurus. See Grenadier, 2.

(4):

(n.) An excrescence growing from the pastern to the middle of the shank of a horse.