blacksnake

1. Black racer: a North american blacksnake ( Coluber constrictor) commonly found in the eastern United States.
   黑脊游蛇：北美产一种黑蛇（黑游蛇），一般于美国东部发现。

noun

1. blackish racer of the eastern United States that grows to six feet

   Synonym:    black racerColuber constrictor

2. large harmless shiny black North American snake

   Synonym:    black rat snakepilot blacksnakemountain blacksnakeElaphe obsoleta