What is the meaning of Black_snake?

Any of certain snakes that are black in colour:

1. Any species of Pseudechis, a genus of Australian snakes.
2. Crotalus oreganus, a venomous North American pit viper species of snake.
3. Agkistrodon piscivorus, a venomous North American pit viper species of snake.
4. Coluber constrictor, a non-venomous North and Central American species of snake.
5. Pantherophis alleghaniensis, a North American colubrid species of snake.
6. Pantherophis obsoletus, a North American colubrid species of snake.
7. Pantherophis spiloides, a North American colubrid species of snake.

Any species of Pseudechis, a genus of Australian snakes.

Crotalus oreganus, a venomous North American pit viper species of snake.

Agkistrodon piscivorus, a venomous North American pit viper species of snake.

Coluber constrictor, a non-venomous North and Central American species of snake.

Pantherophis alleghaniensis, a North American colubrid species of snake.

Pantherophis obsoletus, a North American colubrid species of snake.

Pantherophis spiloides, a North American colubrid species of snake.

A kind of firework that creates a snake-like formation of ash via an intumescent reaction.

Alternative form of blacksnake (“whip”).

Source: wiktionary.org