snakehead

noun

1. A family of perciform fish native to Africa and Asia, Channidae.
2. A Chinese smuggler, especially one who smuggles people
3. A showy perennial plant, Chelone glabra, found in North American marshlands; the turtlehead
4. A loose, bent-up end of one of the strap rails, or flat rails, formerly used on American railroads. It was sometimes so bent by the passage of a train as to slip over a wheel and pierce the bottom of a car.