[ split-teyl ]

  1. a minnow, Pogonichthys macrolepidotus, of the Sacramento River, having the upper lobe of the tail much longer than the lower lobe: habitat changes have greatly reduced its numbers.

Origin of splittail

An Americanism dating back to 1880–85; split + tail1

Words Nearby splittail

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023