| coluber | (n) racers, Syn. genus Coluber |
| blacksnake | (n) blackish racer of the eastern United States that grows to six feet, Syn. Coluber constrictor, black racer |
| blue racer | (n) bluish-green blacksnake found from Ohio to Texas, Syn. Coluber constrictor flaviventris |
| horseshoe whipsnake | (n) slender fast-moving Eurasian snake, Syn. Coluber hippocrepis |
| Coluber | ‖n. [ L., a serpent. ] (Zool.) A genus of harmless serpents. [ 1913 Webster ] ☞ Linnæus placed in this genus all serpents, whether venomous or not, whose scales beneath the tail are arranged in pairs; but by modern writers it is greatly restricted. [ 1913 Webster ] |